RT Journal Article SR Electronic T1 To keep patients with COPD out of hospital, look beyond the lungs JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1402 OP E1403 DO 10.1503/cmaj.181462 VO 190 IS 48 A1 Flegel, Ken A1 Stanbrook, Matthew B. YR 2018 UL http://www.cmaj.ca/content/190/48/E1402.abstract AB