PT - JOURNAL ARTICLE ED - , TI - Correction DP - 2000 Jun 27 TA - Canadian Medical Association Journal PG - 1807--1807 VI - 162 IP - 13 4099 - http://www.cmaj.ca/content/162/13/1807.short 4100 - http://www.cmaj.ca/content/162/13/1807.full SO - CMAJ2000 Jun 27; 162