PT - JOURNAL ARTICLE AU - David C. Mendelssohn TI - To test or not to test DP - 1999 Nov 16 TA - Canadian Medical Association Journal PG - 1238--1238 VI - 161 IP - 10 4099 - http://www.cmaj.ca/content/161/10/1238.1.short 4100 - http://www.cmaj.ca/content/161/10/1238.1.full SO - CMAJ1999 Nov 16; 161