Physiology and Urolithiasis.- Morphology of Renal Epithelium.- Renal Tubular Calcium Transport.- The Possibility of a Specific Calcium Sensor/Receptor Function of Proximal Renal Tubular Cells.- Physiology of Acid-Base Balance.- Intestinal Calcium Transport.- Crystalluria.- On the Occurrence and Nature of Crystals in Human Urine.- Histochemistry of Urinary Deposits.- Biochemistry of Crystalluric as Compared to Non-Crystalluric Stone Formers.- Microlith Formation in Urine: A New Evidence.- Matrix in Stone: An Electron Microscopy Study.- The Relative Merits of Early Morning vs Random Urine Samples for Studying Crystalluria.- Effect of Temperature on Crystal Growth and Morphology.- Seasonal Variations in Urinary Crystalluria and Glutamate Transaminase Levels in Stone Formers and Healthy Normal Subjects.- Kinetic Quantification of Crystal Growth in Gel Matrices: An Efficient Model of Urinary Stone Formation.- Quantitative Studies of Calcium Crystalluria.- New Spectrophotometric Method for Measuring Calcium-Oxalate-Monohydrate Crystal Aggregation in the Absence of Supersaturation.- Gentamycin Accelerates Calcium-Oxalate-Monohydrate (COM) Nucleation.- Calcium-Oxalate Precipitation in a Flow System.- A Simple Method for Determining the Metastable Limit of Calcium Oxalate.- Investigations of the Crystallization Tendency in Urine with Frequency Response Analysis (Impedimetry) and Cyclic Voltametry.- The Effect of Urinary Macromolecules on the Crystal Growth of Calcium Oxalate in Gel.- Changes in the Behavior of Urinary Inhibitors in Calcium-Oxalate Urolithiasis.- Stone Formation in the Human Kidney.- Binding of Calcium Oxalate and Apatite Crystals to Renal Papillary Collecting Tubule Cells in Primary Culture.- Effect of Extract of Hirudo Medicinalis L. Against Adherences of Calcium Oxalate Crystals to Acid-Injured Bladder Mucosa.- Inhibitors and Promoters of Crystallization.- Mineralization Inhibitors and Promoters.- Small-Molecular-Weight Inhibitors.- Macromolecular Inhibitors.- Glycosaminoglycans as Inhibitors of Renal Stone Formation.- The Relationship Between Citrate and Calcium-Oxalate Crystal Agglomeration.- Promotive Effect of Urines from Patients with Primary Hyperparathyroidism on Calcium-Oxalate Crystal Aggregation.- Theme Poster Session: Inhibitors I.- Renal Proximal Tubular Injury and Crystallization of Calcium Oxalate in Rat Urine.- Membrane-Induced Calcium-Oxalate Crystal Nucleation.- Lipids of Calcium-Oxalate Urinary Stones.- Ultrafiltration Studies Demonstrate Effects of Urinary Macromolecules on Crystallization of Endogenous Calcium Oxalate in Urine.- The Effect of Macromolecules on the Crystallization of Calcium Oxalate in Human Urine.- Nephrocalcin Isolated from Human Kidney Stones is a Defective Calcium-Oxalate-Monohydrate Crystal-Aggregation Inhibitor.- Effective Prevention of Calcium-Oxalate Crystal Formation in vitro and in vivo by Pentosan Polysulfate.- The Effect of Uric Acid on the Inhibition of Hydroxyapatite Crystal Growth.- At Last, A Non-Iterative Program to Calculate Growth and Aggregation Rates!.- Assessment of Aggregation of Calcium-Containing Crystals.- Combined Influence of Urinary Calcium and Oxalate Concentrations on Crystal Formation in Stone Formers.- Calcium-Oxalate Crystal Formation in Urolithiasis.- Theme Poster Session: Inhibitors II.- What is Renal Stone Matrix?.- On the Role of the Organic Matrix in the Architecture of Urinary Stones.- Functional Heterogeneity of Tamm-Horsfall Glycoprotein Isolated from Urines of Normal Subjects and Idiopathic Calcium-Oxalate Stone Formers and from Human Calcium-Oxalate Kidney Stones.- The Effect of Tamm-Horsfall Mucoprotein on Calcium Oxalate Crystallization in Urine: Two Methods Compared.- Multiple Effects of Amino Acids and Tamm-Horsfall Glycoprotein on the Precipitation of Calcium Oxalate.- Polyanionic Inhibition Versus Supersaturation in Male and Female Recurrent Calcium-Stone Formers.- Nucleation and Growth Inhibitors of Calcium Oxalate Crystallization.- Calcium-Oxalate-Dihydrate Production.- The Inhibitory Effect of Sodium Pentosan Polysulfate on Calcium-Oxalate Crystal Formation in vitro and in vivo.- Suppression of Struvite and Newberyite Bladder-Stone Formation in Rats by Phosphocitrate.- 1H and 2H Nuclear Relaxation Studies of Lyophilized Urines.- Inhibitors of Heterogeneous Nucleation in Urolithiasis.- Do Stone Formers Lack Inhibitors in Urine?.- Deficit of Inhibitors and Renal Lithiasis.- Modulation of Calcium-Oxalate-Monohydrate Crystallization Kinetics in Vitro.- Urinary Excretion of Lithogenic Substances and Inhibitory Activity Towards Calcium-Oxalate-Monohydrate Crystal Growth in Idiopathic Urolithiasis.- The Effect of Urinary Constituents of Low Molecular Weight on the Crystal Growth of Calcium Oxalate in Gel.- Investigations of Formation and Dissolution of the Stone Minerals, Oxalate and Apatite.- Role of Pyrophosphate in Calculogenesis.- Magnesium Inhibits Octacalcium Phosphate and Apatite but Promotes Whitlockite and Brushite Formation.- Is Hypomagnesuria Frequent in Stone Formers?.- Trace-Element Contents of Serum, Urine, and Kidney Stones in Urinary Stone Formers.- Ability of Some Carboxylic and Phosphorylated Carboxylic Acids to Prevent Hydroxyapatite and Calcium-Oxalate Precipitation.- Urinary Macromolecular-Inhibitory-Substances of Calcium-Oxalate-Monohydrate Crystal Growth.- Glycosaminoglycans and Urolithiasis.- Adherence of Glycosaminoglycans to Calcium-Oxalate Crystals.- Seromucoids, Urinary Mucoproteins, Tamm-Horsfall Protein, Glycosaminoglycans, and Total Carbohydrates in Stone Disease.- Study of Circadian Rhythmicity of Urinary Excretion of Glycosaminoglycans in Normal Subjects and Stone Formers.- Favorable Effect of Glycosaminoglycans on Cellular and Urinary Abnormalities in Idiopathic Calcium-Oxalate Nephrolithiasis.- Decreased Erythrocyte Glycosaminoglycan Content in Idiopathic Calcium-Oxalate Nephrolithiasis.- Urinary Excretion of Glycosaminoglycans in Calcium Lithiasis: The Role of Protein Intake.- Correlation of Urinary Excretion of Glycosaminoglycans and Uric Acid in Healthy Adults and in Renal Stone Formers.- Calcium-Oxalate Crystal Growth: Influence of Natural Inhibitors.- Effect of Calcitriol Administration on Urinary Excretion of Nephrocalcin, A Calcium-Oxalate Crystal-Growth Inhibitor.- The Influence of Additives on Nucleation, Crystal Growth, and Aggregation of Calcium-Oxalate Hydrates.- Amino Acid Excretion in Urinary Calculous Disease.- The Effect of Glutamic Acid and Aspartic Acid on Calcium-Containing Stones.- Non-Calcium Stones.- Renal Infections and Stones.- Bacterial Ecology in Struvite Calculogenesis.- Urinary Calculi and Urinary Tract Infection.- Urinary Tract Infection and Urinary Stone Disease.- The Role of Infection in the Adherence of Urease-Induced Crystals to the Urothelium.- Ureaplasma Urealyticum: An Etiological Agent for the Development of Infection Stones in the Urinary Tract.- Renal Calculi and Bacterial Adherence: An Ultrastructural Study of Adhesion to Hydroxyapatite Particles by Urinary Tract Pathogens.- E. Coli - A Promoting Factor in the Development of Phosphate Stones?.- The Bacteriology of Operated Renal Stones.- The Value of Extensive Urine and Stone Cultures in Patients Undergoing Surgical Removal of Urinary Tract Stones.- Uric Acid Nephrolithiasis.- Undissociated Uric Acid in Nephrolithiasis.- Laxative Abuse as a Cause for Ammonium-Urate Renal Calculi.- 2,8-Dihydroxyadenine Stone Formation.- Long-Term Observation of the Metabolism and Adapted Therapy in Cystine Stone Patients.- Dietary Restriction of Sodium as a Means of Reducing Urinary Cystine.- Uralyt-U Maintains an Optimal Urinary pH in Patients with Cystinuria.- Spurious Stones.- Factitious Struvite Stones - A Case Report.- Urinary Constituents in Urolithiasis.- Mechanism of Idiopathic Hypercalciuria: A Search for a Unifying Hypothesis.- Differentiation of Unclassified Hypercalciuria Utilizing a Sodium-Cellulose-Phosphate Trial.- Histological and Biochemical Characterization of a Model of Nephrolithiasis Incorporating Proximal Tubular Dysfunction.- Hypercalciuria and Hyperoxaluria in Stone Formers.- Theme Poster Session: Hypercalciuria.- Insulin Stimulates Intestinal Calcium Absorption in Man and the Rat.- Calcium Transport by Red Cells from Hypercalciuric Stone Formers.- Intestinal Absorption of Oxalate and Calcium.- Urinary Calcium and Oxalate Excretion in Stone Formers and Normal Subjects in Saudi Arabia.- Calcitonin and Parathyroid Hormone Provocative Tests in Fasting Hypercalciuria.- Effect of Insulin on Renal Function in Streptozotocin-Treated Rats.- Prostaglandin E2 and Hydrochlorothiazide-Mediated Hypocalciuria: A Hypothesis.- Lack of a Relationship Between Urinary Calcium Excretion and Sodium Excretion in Stone Formers with High Fasting Calcium/Creatinine Ratios.- Urinary Calcium After Oral Glucose Ingestion in Calcium Stone Formers: A Simple Provocative Test for Predicting Stone Recurrence.- Response of Patients with Medullary Sponge Kidney and Calcium Nephrolithisis to an Acute Acid Load.- Premature Infants Treated with Furosemide have Increased Urinary Calcium and Unchanged Urinary Citrate Excretion Compared to Controls.- Medullary Sponge Kidney.- Medullary Sponge Kidney and Calcium Nephrolithiasis.- Lower Vertebral Mineral Density in Calcium Stone Formers with Normocalciuria and Idiopathic Hypercalciuria: Evidence for Primary Bone Resorption in Idiopathic Hypercalciuria.- Mineral Metabolism and Bone Mineral Content in Calcium Nephrolithiasis with and without Hyperparathyroidism.- Bone Mineral Content and Recurrent Calcium Nephrolithiasis with Idiopathic Hypercalciuria.- The Calciuretic Effect of Methionine in Humans.- Clearance Studies in Normal and Nephrocalcinotic Rats on Nifedipine.- Interdependence of Some Selected Parameters on Calcium Excretion in Kidney Stone Patients.- Hyperoxaluria.- Plasma Oxalate and its Diurnal Variation and Renal Clearance.- Theme Poster Session: Oxalate.- Oxalate Synthesizing Enzymes in Rat Liver.- The Effect of Vitamin D on Conversion of Ethylene Glycol to Glycolate and Oxalate.- Effect of Oxalate on Kidney Mitochondrial Function.- Pharmacokinetic and Autoradiographic Studies on Oxalate in Rats.- Increased Dietary Calcium Intake Reduces Urinary Oxalate Excretion in Healthy Adults.- Increased Urinary Glycolate in Idiopathic Calcium-Oxalate Nephrolithiasis.- Oxalate Exchange in Red Blood Cells of Calcium-Oxalate Stone Formers: A Pharmacological Study.- Oxalate Transport in Rat Renal-Cortical Brush-Border-Membrane Vesicles.- Erythrocyte Abnormality in Oxalate Self-Exchange and Urinary Acidification in Idiopathic Calcium-Oxalate Stone Formers.- Renal Oxalate Handling in Normal Subjects and Patients with Idiopathic Renal Lithiasis: Primary and Secondary Hyperoxaluria.- Oxalate in Urine and Plasma Re-Visited: Evidence for Mild Hyperoxaluria in 24-h Urine Samples from Male and Female Patients with Calcium Urolithiasis.- The Effect of Increasing Urate Concentration on the Precipitation of Calcium Oxalate from Human Urine.- Comparison of Urine Composition in Male Patients Forming Calcium Stones of Different Types.- Oxalate Transport Studies in Intestinal and Renal Brush-Border-Membrane Vesicles in Pyridoxine-Deficient Rats.- Alterations in Renal Brush-Border-Membrane Enzymes in Vitamin A-, B1-, and B6-Deficient Rats.- Characteristics of Oxalate Uptake Along the Villus-Crypt Axis in Rat Intestine.- Induction and Isolation of Oxalate Binding Protein in Rat Intestinal Brush-Border Membrane.- Transport of Oxalate in Intact Red-Blood Cells can Identify Potential Stone Formers.- Mitochondrial and Cellular Metabolism in Experimental Hyperoxaluric Nephrolithiasis.- Hydroxycarboxylate Malabsorption and Calcium Oxalate Nephrolithiasis.- Contribution of Different Doses of Ascorbic Acid to Urinary Oxalate and its Influence on the Mineralization Process.- Jejuno-Ileal Bypass in the Rat: Failure to Produce Enteric Hyperoxaluria.- Endogenous Oxalate Production, Clinical Catastrophes, and Oxalate Urolithiasis.- Ethylene Glycol Intoxication.- Cimetidine Inhibition of Hepatic Aldehyde Dehydrogenase and Oxalate Production.- Biochemistry of Citrate.- Mechanisms of Hypocitraturia in Idiopathic Calcium-Stone Disease.- Citrate Excretion and Stone Formation: The Prevalence of Hypocitraturia in Stone Formers and its Dependence on Age and Sex.- Prevalence of Permanent Idiopathic Hypocitraturia in Calcium Stone Formers.- Circadian Rhythmicity in Urinary Citrate Excretion in Healthy Men and Male Calcium-Oxalate Stone Formers.- Urinary Citrate Excretion as a Screening Test for Distal Renal-Tubular Acidosis.- Physicochemical Action and Extrarenal Manifestations of Alkali Therapy.- Citrate and Idiopathic Recurrent Calcium Urolithiasis: An Approach to the Origin of Hypocitraturia and Correction by Two Oral Alkali Citrates.- Contrasting Effects of Various Potassium Salts on Acid-Base Status, Urinary Citrate Excretion, and Renal Citrate Clearance.- Chemical Analyses.- Theme Poster Session: Chemical Analyses.- External Quality Assessment of Urinary Oxalate Analysis: Three Years' Experience.- Analysis of an Immobilized Oxalate-Oxidase Method in Urine: Problems Solved and Methods Compared.- Circadian Variation of Plasma Oxalate in Normal Healthy Subjects.- A New Method for Glycolate Determination in Plasma and Urine.- A Rapid High-Performance Ion-Chromatographic Procedure for the Estimation of Glycolate in Plasma and Urine.- Microdetermination of Urinary Constituents by Vertical Light-Path Photometry in Microplates.- Reliability of a Single 24-Hour Urine Testing for the Detection of Abnormal Stone-Forming Risk Factors.- Day to Day Variation in Urine Saturation and Risk Factors of Calcium Urolithiasis.- The Use of a Pulsed Dye Laser for Identification of Urinary Stone Composition.- Should Idiopathic Calcium-Phosphate Stones be Separated from Calcium-Oxalate Stones?.- Sulfur Amino Acids, Thiol Drugs, and Related Mixed Disulfides from Urine Samples of Cystine Stone Patients.- Urine Studies in Xanthinuria.- The Effects of Various Therapeutic Agents on Urine Composition in Calcium Stone Formers during Follow-Up at an Out-Patient Stone Clinic.- Significance of Urinary Excretion of Stone Components in Long-Term Follow-Up of Calcium-Oxalate Stone Patients.- Clinical Application of a New HPLC Determination of Urinary Glycolate.- A Method for the Determination of Urinary Ammonium.- An Assay for Urinary Citrate using High-Performance Liquid Chromatography.- The Oxalate Tolerance Method and its Application to Investigations on Stone Formers and Normal Subjects.- Temperature Dependence of the Magnesium-Oxalate Stability Constant.- The Effect of Low-Speed Centrifugation and Millipore Filtration on the Urinary Protein Content.- Use of EQUIL to Estimate pH of Well-Defined Solutions.- A Computerized System for the Metabolic Evaluation of Renal Lithiasis Patients.- Experimental and Computed Inhibition of Calcium Oxalate Precipitation.- Hormones in Urolithiasis.- 1,25(OH)2D3 in Humans: Regulation in Health and Role in Urolithiasis.- Response to Exogenous 1,25(OH)2D during a Low-Calcium Diet in Normal Subjects and Idiopathic Renal-Stone Formers.- Effects of l?-Hydroxylated Vitamin-D Metabolites on Intestinal Radio-Calcium Absorption and Urinary Calcium Excretion in Short- and Long-Term Treatments of Postmenopausal Osteoporosis.- Effect of Hypovitaminosis A and Supplementation of Vitamin D3 on Calcium and Oxalate Absorption by Rat Intestinal Brush-Border-Membrane Vesicles.- Physiological and Clinical Aspects of Primary Hyperparathyroidism.- Combined Primary Hyperparathyroidism and Absorptive Hypercalciuria: Clinical Implications.- Surgical Aspects of Hyperparathyroidism.- Biochemical and Clinical Studies After Parathyroidectomy in Primary Hyperparathyroidism.- Is There a Role for the Thyroid Gland in Renal Calcium-Stone Formation?.- Nutrient Energy Intake, Fasting Serum Insulin, and Urinary Oxalate Excretion.- Urolithiasis Around the World.- Theme Poster Session: Geography and Epidemiology of Stones.- Descriptive Epidemiology of Urolithiasis in Japan.- Morbidity of Urolithiasis in the Federal Republic of Germany in 1979 and 1984.- The Tubingen Urolithiasis Record.- Urinary Tract Stone Incidence in the U.S. Veteran Population.- Epidemiology of Stone Disease in the United States as Discerned from a Stone-Risk Profile.- The Calculation of Stone Risk in the Urine of Middle Eastern Men and Western Expatriates Living in Saudi Arabia.- Chronological Variation in Chemical Composition of Urinary Calculi Between 1965-68 and 1982-86 in North-Western India.- Piridoxilate-Induced Calcium Oxalate Nephrolithiasis: A Nation-wide Epidemiologic Evaluation of Incidence.- Prevalence of Distal Renal-Tubular Acidosis in Five Khon Kaen Villages.- Blood and Urinary Composition of Aggregators and Inhibitors in Renal Stone Patients in Northeast Thailand.- Prostatic Hyperplasia Complicated with Vesical Calculus.- Extended Investigations in 800 Recurrent Stone Formers: Methods and Results.- Relapsing Calcium Stones: The Real Interest of Daily Calciuria.- Statistical Characterization of a Selected Group of Patients with Recurrent Calcium Nephrolithiasis.- Epidemiological Investigation of Nephrolithiasis in the Region of SAP Kosovo in Yugoslavia.- The Pattern of Urinary-Tract Stone Disease in Croatia.- Analysis of 265 Calcium-Oxalate Concrements of the Uropoietic Tract in Patients from the Osijek Region.- The Prevalence of Primary Hyperparathyroidism in Patients with Nephrolithiasis in North-East Slavonija and Baranja.- Assessment of the Risk Factor Index in Stone Formers.- Differences in Urines Collected from the Bladder and a Stone-Forming Kidney.- The Prevalence of Urolithiasis in the Western Region of Saudi Arabia: A Population Study.- Chemical Composition of Urinary Stones in Jeddah: A Study of 441 Samples and a Proposed New Classification.- Stone Type and Urine Composition in the Middle East with Particular Reference to Saudi Arabia.- Urinary Calcium Excretion in Saudi Arabia.- Chemical Composition of Renal Stones in Mosul.- Urine and Blood Biochemistry in Stone Patients and Normal Subjects in India.- Circadian Rhythmicity in the Urinary Excretion of Calcium, Oxalate, Uric Acid, and Inorganic Phosphorus in Stone Formers and Their Cohorts in Northwestern India.- Physico-Chemical Analysis of Urinary Stones.- Risk of Stone Formation in Rock-Phosphate Mine Workers.- Bladder Stone Disease in Udaipur (Southern Part of Rajasthan, India).- Prevalence of Upper Urinary-Tract Stones in the Baan Fang District in Northeast Thailand.- Mechanism of Hypercalciuria in Renal Stone Patients in Northeast Thailand.- The Importance of Diet in the Etiology of Primary Calcium and Uric-Acid Stone Formation: The Arabian Experience.- Role of Diet in Calcium Nephrolithiasis.- Increased Frequency of Hypercalciuria in Stone Formers with High Protein Intake.- Hyperuricosuria: A Risk Factor for Urolithiasis in Saudi Arabia.- Effects of Dietary Sodium on Lithogenic Risk Factors.- Renal Stone Disease and Nutrient Intake in Italy.- The Effect of Modified Diets on Urinary Risk Factors in Kidney Stone Disease.- Clinical Effects of Prophylactic Dietary Treatment of Renal Stone Disease in Japan.- The Significance of Annual Rhythms for the Excretion of Lithogenic and Inhibitory Substances in Urine.- Overweight and Calcium Stone Disease.- The Effect of Fasting During the Holy Month of Ramadan on the Risk of Calcium-Oxalate and Uric-Acid Stone Formation.- Changes in Urinary Solute Excretion During Fasting in the Holy Month of Ramadan.- The Effect of Fasting on Urinary Stone Risk.- Diurnal Changes in Urine Chemistry of Normal Moslem Subjects During Fast.- Volume Control in the Desert: Stone Formers in Saudi Arabia.- Bearing of Drinking Water Quality on the Prevalence of Urolithiasis.- Soft Drinking Water and Urolithiasis.- Normal Values of Lithogenic and Inhibitory Substances in the Urine of Healthy Children.- Statistics of Stone Analysis in Childhood Urolithiasis.- Changing Trends in Pediatric Urolithiasis in Kerala, India.- Medical Treatment.- Theme Poster Session: Medical Treatment.- Prognosis of Asymptomatic Urolithiasis.- Prevention of Recurrent Calcium-Oxalate Calculi Through Use of Hydrochlorothiazide Combined with Amiloride.- Correlation Between Recurrence of Nephrolithiasis and Persistence of Bone Resorption in Patients with Recurrent Calcium Nephrolithiasis on Long-Term Thiazide Therapy.- Lack of Effect of Thiazide Therapy on Serum 1,25-Dihydroxyvitamin D in Idiopathic Hypercalciuria with Renal Calculi.- Combined Hydrochlorothiazide and Magnesium Treatment in Calcium-Oxalate Stone Formers - A Randomized Study.- Pharmacological Prevention of Renal Calcium Stones After Extracorporeal Shock-Wave Lithotripsy.- The Use of K-Lyte (Potassium Citrate) in Uric Acid Lithiasis.- Treatment of Calcium-Oxalate Urolithiasis with Alkali Citrate: Effects on Urinary Parameters in Patients on Standardized and Free Diets.- Alkali Citrate Versus Diet for Prevention of Calcium Urolithiasis.- Dissolution of Uric Acid Stones.- Study of the Effects of Stones and Drugs on the Ureter in a Pig Model.- Calcium Oxalate Stone Therapy with Thiazides and Allopurinol: A Five-Year Study.- Comparison of Two Different Combinations of Diuretics in Reducing Hypercalciuria in Recurrent Stone Formers.- Relapsing Calcium Stones: The Long-Term Results of Pharmacological Therapy.- Use of Risk Factors in Medical Management to Reduce Recurrence of Calcium-Oxalate Kidney Stones.- The Effect of Verapamil and Thiazide in the Prevention of Renal Stone Formation in an Experimental Model.- Short-Term Effects of Low-Dose Thiazide and Amiloride Administration Compared with Potassium Citrate Therapy in Recurrent Nephrolithiasis.- Effects of Different Doses of Alkaline Citrate on Urine Composition and Crystallization of Calcium Oxalate.- Influence of Single-Dose Alkali Citrate in Hypocitraturic and Hypercalciuric Healthy Subjects.- Five Years Experience with Oxalyt-CR (Sodium Potassium Citrate) in Calcium-Oxalate Stone Formers.- Vitamin-B6 Status and Oxalate Excretion in Patients with Calcium Lithiasis.- Pyridoxine in the Long-Term Follow-Up of Crystalluric Stone Formers.- Magnesium Therapy in Calcium-Oxalate Stone Patients.- High Dietary Magnesium and Thiazide Administration in the Prevention of Calcium-Oxalate Stone Formation in an Experimental Model.- Allopurinol and Dietary Purine Affect Urinary Uric Acid but not Urinary Oxalate Levels.- In Vivo Effects of Dermatan Sulfate After Intravenous Injection in Calcium-Oxalate Stone Formers.- Medical Plant Agents in the Treatment and Prophylaxis of Recurrent Urolithiasis.- The Role of Tamarind and Tomato in Controlling Crystalluria.- Dietary Fiber and Urolithiasis Part I: Physical, Chemical, and Hygienic Properties of Various Brans.- Dietary Fiber and Urolithiasis Part II: Effects of a High Dietary Fiber Intake on the Urine Composition in Man.- Preventing the Recurrence of Kidney Stones with Farnolith Bran Preparation.- Calcium Metabolism in Normal Subjects and in Hypercalciuric Patients Treated with FarnolithR.- Wheat Bran: A Selective Therapy for Absorptive Hypercalciuria.- Non-Operative and Surgical Treatment.- Current State and Future Developments of Non-Invasive Treatment of Urinary Stones with Extracorporeal Shock-Wave Lithotripsy.- What Happens to a Stone with Lithotripsy?.- Second Generation Lithotripters: What Have They Brought?.- Piezoelectric Shock-Wave Lithotripsy: Experimental and Clinical Results.- Intracorporeal Laser-Induced Shock-Wave Lithotripsy.- Shock-Wave Lithotripsy: How Much is Enough?.- Theme Poster Session: Lithotripsy I.- Technical Modifications of the Dornier HM3: Preliminary Results from a Single Center.- Initial Experience with the Second-Generation Lithotripter, Dornier HM-4.- Lithostar Extracorporeal Shock-Wave Lithotripsy: The Initial Experience.- The MFL 5000: A New Machine for Urological Diagnosis, Endourology, and Extracorporeal Shock-Wave Lithotripsy.- Long-Term Results in ESWL-Treated Urinary Stone Patients.- A Clinical Study on the Recurrence of Urinary Tract Lithiasis After ESWL.- Side Effects of Extracorporeal Shock-Wave Exposure on the Kidney in Dogs.- Extracorporeal Shock-Wave Lithotripsy: Increased Risk for Hematoma Formation by Acetylsalycic Acid?.- Renal Functional Alterations after Extracorporeal Shock-Wave Lithotripsy Assessed by Measurement of Urinary Proteins.- Theme Poster Session: Lithotripsy II.- Extracorporeal Shock-Wave Lithotripsy Plus Ureteral Stenting - A Suitable Treatment for Staghorn Stones?.- The Management of Staghorn Stones Using a Combination of Siemens Lithotripter, PCNL, and Hemiacidrin Irrigation.- Management of Ureteral Steinstrasse After Extracorporeal Shock-Wave Lithotripsy.- Results of Non-Surgical Uric Acid and Cystine Calculi Treatment.- Treatment of Ureteral Calculi with Anesthesia-Free ESWL.- Emerging Concepts in the Treatment of Ureteral Stones.- Four Years of Experience with Ureteroscopy: Technique and Results in More Than 500 Cases.- Ultrasound Ureterolithotripsy Utilizing a 10.5-French Rigid Ureteroscope and a 2.5 Wire-Probe Transducer.- New Techniques and Developments in Extracorporeal Shock-Wave Lithotripsy: The Dornier HM-4 and MPL 9000.- Extracorporeal Shock-Wave Lithotripsy with the Siemens 'Lithostar': The Manchester Experience.- Comparative Experimental Study on the Disintegrating Effect of the Tunable Dye Laser and Ultrasound on Stones of Various Composition.- A Successful Concept for Anesthesia in Extracorporeal Shock-Wave Lithotripsy.- Renal Complications Following Extracorporeal Shock-Wave Lithotripsy.- Complications of Extracorporeal Piezoelectric Shock-Wave Lithotripsy.- Effect of High-Energy Shock Waves on Bony Tissue.- The Blood Pressure After Percutaneous Nephrolithotomy.- Retroperitoneal Air and Extracorporeal Shock-Wave Lithotripsy.- Obstructing Urethral Stone Treated by Extracorporeal Piezoelectric Lithotripsy.- E-51 ESWL and Hemiacidrin Renal Irrigation as a Treatment for Complex Struvite Calculi: A Review of 11 Patients.- The Treatment of Urinary Calculi in Transplanted Kidneys.- Extracorporeal Shock-Wave Cholelithotripsy.- Plane of Stone Cleavage in Extracorporeal Shock-Wave Lithotripsy.- Analyses of Kidney-Stone Fragments Recovered from Patients After Shock-Wave Lithotripsy.- Current Controversies in Surgical and Endourological Management of Urolithiasis.- Ureteric Stones: The Choice of Treatment.- The Management of Ureteral Stones.- The Comparative Value of Plain X-Rays and Pyelograms in Ureteric Calculi.- Staghorn Calculi: Controversies in Management.- Staghorn Stone Treatment with Extracorporeal Shock-Wave Lithotripsy: The Fate of Residual Stones.- Non-Operative Treatment of Staghorn Calculi.- The Evaluation of Retrograde Nephrostomy in Over 200 Procedures.- Percutaneous Stone Removal Using a Combined Retrograde-Antegrade Access Technique.- Thoracoscopy as an Aid to Safer Intercostal Percutaneous Nephrostomy.- Flexible Urethrocystoscopy in Practice.- In Vitro Dissolution of Infection-Induced Urinary Calculi.- Importance of Time of Furosemide Administration on the Diuretic, Natriuretic, and Kaliuretic Effects.