RT Journal Article SR Electronic T1 Vaccinating the world: How likely? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 24 OP 24 DO 10.1503/cmaj.045212 VO 172 IS 1 A1 Laura Eggertson YR 2005 UL http://www.cmaj.ca/content/172/1/24.abstract