RT Journal Article SR Electronic T1 Healthy-vaccinated effect JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E838 OP E838 DO 10.1503/cmaj.69406 VO 190 IS 27 A1 Alberto Donzelli A1 Alessandro Schivalocchi A1 Giulia Giudicatti YR 2018 UL http://www.cmaj.ca/content/190/27/E838.abstract AB