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 Michael R. Kolber A1 Darren Lau A1 Dean Eurich A1 Christina Korownyk YR 2014 UL http://www.cfp.ca/content/60/1/50.abstract AB