[1] McMaster Univ, Dept Hlth Aging & Soc, 1280 Main St West,Kenneth Taylor Hall Room 226, Hamilton, ON L8S 4M4, Canada
[2] Univ Antioquia, Fac Med, Cra 51D 62-29, Medellin, Antioquia, Colombia
[3] Western Univ, Sch Hlth Studies, 1151 Richmond St, London, ON N6A 3K7, Canada
[4] Univ Michigan, Ctr Bioeth & Social Sci Med, Ann Arbor, MI 48100 USA
[5] Univ San Sebastian, Fac Med & Ciencia, Santiago, Chile
[6] Univ Birmingham, Hlth Serv Management Ctr, 40 Edgbaston Pk Rd, Birmingham B15 2RT, England
[7] NIH, Dept Bioeth, Bethesda, MD USA
[8] Univ Toronto, Dalla Lana Sch Publ Hlth, Inst Hlth Policy Management & Evaluat, 155 Coll St W, Toronto, ON M5T 3M6, Canada
[9] 1280 Main St West,Kenneth Taylor Hall Room 226, Hamilton, ON L8S 4M4, Canada