RT Journal Article SR Electronic T1 Pregnancy, breastfeeding and the SARS-CoV-2 vaccine: an ethics-based framework for shared decision-making JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP cmaj.202833 DO 10.1503/cmaj.202833 A1 Zipursky, Jonathan S. A1 Greenberg, Rebecca A. A1 Maxwell, Cynthia A1 Bogler, Tali YR 2021 UL http://www.cmaj.ca/content/early/2021/01/26/cmaj.202833.abstract