RT Journal Article SR Electronic T1 Effectiveness of the trivalent influenza vaccine JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 50 OP 50 VO 60 IS 1 A1 Kolber, Michael R. A1 Lau, Darren A1 Eurich, Dean A1 Korownyk, Christina YR 2014 UL http://www.cfp.ca/content/60/1/50.abstract AB