Urinary tract stone disease in the United States veteran population. II. Geographical analysis of variations in composition

NS Mandel, GS Mandel - The Journal of urology, 1989 - Elsevier
The geographical distribution of crystalline components observed in urinary tract stones in
the continental United States has been studied in the United States veteran population.
Since the veteran population is at risk for urolithiasis the National Veterans Administration
Crystal Identification Center was established in 1983 for the characterization of all crystal-
containing veteran patient samples using high resolution x-ray powder diffraction. The
geographical distribution of whewellite, weddelite, apatite, brushite, struvite, uric acid and …