PT - JOURNAL ARTICLE ED - , TI - Recommendations for the prevention and control of influenza during the 1990-91 season DP - 1990 Sep 01 TA - Canadian Medical Association Journal PG - 395--398 VI - 143 IP - 5 4099 - http://www.cmaj.ca/content/143/5/395.short 4100 - http://www.cmaj.ca/content/143/5/395.full SO - CMAJ1990 Sep 01; 143