RT Journal Article SR Electronic T1 Optimizing care for critically ill older adults JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1525 OP E1533 DO 10.1503/cmaj.210652 VO 193 IS 39 A1 Olivia Geen A1 Bram Rochwerg A1 Xuyi Mimi Wang YR 2021 UL http://www.cmaj.ca/content/193/39/E1525.abstract