Kidney stones is a common and ancient disease. Yet, many questions concerning their etiology, treatment, and prevention are still open. The Harnstein-Symposien Bonn-Wien is an organization designed to bring together scientists from the various fields relevant to urolithiasis: medicine, urology, biochemistry, etc. In the framework of this organiza tion an International Workshop was held in Tel Aviv on December 10 and 11 1980 to discuss the various aspects of uric acid lithiasis. Uric acid stones have been known to mankind for thousands of years. Urate-contain ing stones were found in Egyptian...