TY - JOUR T1 - Canadian physicians frustrated with vaccine rollout JF - Canadian Medical Association Journal JO - CMAJ SP - E458 LP - E459 DO - 10.1503/cmaj.1095929 VL - 193 IS - 13 AU - Diana Duong Y1 - 2021/03/29 UR - http://www.cmaj.ca/content/193/13/E458.abstract ER -