PT - JOURNAL ARTICLE AU - Murray W. Enkin AU - Alejandro R. Jadad TI - A matter of perspective DP - 2000 Jun 27 TA - Canadian Medical Association Journal PG - 1839--1841 VI - 162 IP - 13 4099 - http://www.cmaj.ca/content/162/13/1839.short 4100 - http://www.cmaj.ca/content/162/13/1839.full SO - CMAJ2000 Jun 27; 162