PT - JOURNAL ARTICLE AU - Brian Owens TI - Roles of nurse practitioners and physician assistants in medicine still under debate AID - 10.1503/cmaj.109-5708 DP - 2019 Feb 19 TA - Canadian Medical Association Journal PG - E203--E204 VI - 191 IP - 7 4099 - http://www.cmaj.ca/content/191/7/E203.short 4100 - http://www.cmaj.ca/content/191/7/E203.full SO - CMAJ2019 Feb 19; 191