PT - JOURNAL ARTICLE AU - Alan Blum TI - Can’t catch my breath AID - 10.1503/cmaj.181492 DP - 2019 Feb 04 TA - Canadian Medical Association Journal PG - E148--E48 VI - 191 IP - 5 4099 - http://www.cmaj.ca/content/191/5/E148.short 4100 - http://www.cmaj.ca/content/191/5/E148.full SO - CMAJ2019 Feb 04; 191