RT Journal Article SR Electronic T1 COVID-19 and return-to-work recommendations for people with chronic respiratory diseases JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1021 OP E1021 DO 10.1503/cmaj.76441 VO 192 IS 35 A1 Max Deschner A1 Grace Parraga A1 Cory Yamashita YR 2020 UL http://www.cmaj.ca/content/192/35/E1021.abstract