PT - JOURNAL ARTICLE ED - , TI - Une politique disparate : la vaccination au Canada DP - 2003 Mar 04 TA - Canadian Medical Association Journal PG - 535--535 VI - 168 IP - 5 4099 - http://www.cmaj.ca/content/168/5/535.short 4100 - http://www.cmaj.ca/content/168/5/535.full SO - CMAJ2003 Mar 04; 168