PT - JOURNAL ARTICLE AU - David L. Sackett TI - Uncertainty about clinical equipoise DP - 2001 Jun 26 TA - Canadian Medical Association Journal PG - 1831--1832 VI - 164 IP - 13 4099 - http://www.cmaj.ca/content/164/13/1831.3.short 4100 - http://www.cmaj.ca/content/164/13/1831.3.full SO - CMAJ2001 Jun 26; 164