PT - JOURNAL ARTICLE ED - , TI - Corrections DP - 2000 Apr 04 TA - Canadian Medical Association Journal PG - 973--973-c VI - 162 IP - 7 4099 - http://www.cmaj.ca/content/162/7/973.4.short 4100 - http://www.cmaj.ca/content/162/7/973.4.full SO - CMAJ2000 Apr 04; 162