TY - JOUR T1 - Recommendations for the prevention and control of influenza during the 1990-91 season JF - Canadian Medical Association Journal JO - CMAJ SP - 395 LP - 398 VL - 143 IS - 5 A2 - , Y1 - 1990/09/01 UR - http://www.cmaj.ca/content/143/5/395.abstract ER -