PT - JOURNAL ARTICLE ED - , TI - Statement on influenza vaccination for the 1989-90 season DP - 1989 Sep 01 TA - Canadian Medical Association Journal PG - 425--427 VI - 141 IP - 5 4099 - http://www.cmaj.ca/content/141/5/425.short 4100 - http://www.cmaj.ca/content/141/5/425.full SO - CMAJ1989 Sep 01; 141