RT Journal Article SR Electronic T1 What we need to learn about multimorbidity JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1001 OP E1001 DO 10.1503/cmaj.181046 VO 190 IS 34 A1 Flegel, Ken YR 2018 UL http://www.cmaj.ca/content/190/34/E1001.abstract