PT - JOURNAL ARTICLE AU - Ken Flegel TI - Health care workers must protect patients from influenza by taking the annual vaccine AID - 10.1503/cmaj.121679 DP - 2012 Nov 20 TA - Canadian Medical Association Journal PG - 1873--1873 VI - 184 IP - 17 4099 - http://www.cmaj.ca/content/184/17/1873.short 4100 - http://www.cmaj.ca/content/184/17/1873.full SO - CMAJ2012 Nov 20; 184