PT - JOURNAL ARTICLE AU - O'Brien, M. M. AU - Uhlemann, I. AU - McIntosh, H. W. TI - Urinary pyrophosphate in normal subjects and in stone formers DP - 1967 Jan 14 TA - Canadian Medical Association Journal PG - 100--103 VI - 96 IP - 2 4099 - http://www.cmaj.ca/content/96/2/100.short 4100 - http://www.cmaj.ca/content/96/2/100.full SO - CMAJ1967 Jan 14; 96