PT - JOURNAL ARTICLE AU - Lauren Vogel TI - Doctors question annual TB testing of health workers AID - 10.1503/cmaj.109-5797 DP - 2019 Aug 12 TA - Canadian Medical Association Journal PG - E904--E905 VI - 191 IP - 32 4099 - http://www.cmaj.ca/content/191/32/E904.short 4100 - http://www.cmaj.ca/content/191/32/E904.full SO - CMAJ2019 Aug 12; 191