RT Journal Article SR Electronic T1 Why is WHO pushing back on a Health Canada–approved Medicago SARS-CoV-2 vaccine? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E504 OP E505 DO 10.1503/cmaj.1095992 VO 194 IS 13 A1 Diana Duong A1 Lauren Vogel YR 2022 UL http://www.cmaj.ca/content/194/13/E504.abstract