RT Journal Article SR Electronic T1 The role of seroepidemiology in the comprehensive surveillance of vaccine-preventable diseases JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E70 OP E76 DO 10.1503/cmaj.110506 VO 184 IS 1 A1 Sarah E. Wilson A1 Shelley L. Deeks A1 Todd F. Hatchette A1 Natasha S. Crowcroft YR 2012 UL http://www.cmaj.ca/content/184/1/E70.abstract