RT Journal Article SR Electronic T1 Combination measles-mumps-rubella-varicella vaccination and the risk of febrile seizure JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP cmaj.140778 DO 10.1503/cmaj.140778 A1 Top, Karina A. A1 MacDonald, Noni E. YR 2014 UL http://www.cmaj.ca/content/early/2014/06/30/cmaj.140778.abstract AB