RT Journal Article SR Electronic T1 Looking back, looking forward JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 869 OP 869 DO 10.46747/cfp.6711869 VO 67 IS 11 A1 Catherine Cervin YR 2021 UL http://www.cfp.ca/content/67/11/869.abstract AB