RT Journal Article SR Electronic T1 Pneumococcal vaccination and myocardial infarction JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 320 OP 320 DO 10.1503/cmaj.1080126 VO 180 IS 3 A1 Lamontagne, François A1 Smieja, Marek YR 2009 UL http://www.cmaj.ca/content/180/3/320.abstract