PT - JOURNAL ARTICLE ED - , TI - Surveillance of drug adverse reactions DP - 1972 Mar 04 TA - Canadian Medical Association Journal PG - 535--536 VI - 106 IP - 5 4099 - http://www.cmaj.ca/content/106/5/535.short 4100 - http://www.cmaj.ca/content/106/5/535.full SO - CMAJ1972 Mar 04; 106