RT Journal Article SR Electronic T1 Polio JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1509 OP E1509 DO 10.1503/cmaj.221320 VO 194 IS 44 A1 Aoife M.R. Pucchio A1 Anwar Alabdulraheem A1 Marina I. Salvadori YR 2022 UL http://www.cmaj.ca/content/194/44/E1509.abstract