TY - JOUR T1 - Opioids for chronic noncancer pain in the elderly JF - Canadian Family Physician JO - Can Fam Physician SP - 907 LP - 911 VL - 57 IS - 8 AU - Beverley Karras AU - Nora McKee AU - Loren Regier AU - Shannon Stone Y1 - 2011/08/01 UR - http://www.cfp.ca/content/57/8/907.abstract N2 - ER -