RT Journal Article SR Electronic T1 Excess mortality, COVID-19 and health care systems in Canada JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E741 OP E745 DO 10.1503/cmaj.220337 VO 194 IS 21 A1 McGrail, Kimberlyn YR 2022 UL http://www.cmaj.ca/content/194/21/E741.abstract