RT Journal Article SR Electronic T1 Vitamins for age-related macular degeneration demonstrate minimal differences JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 503 OP 503 VO 59 IS 5 A1 Michael R. Kolber A1 Mathew Tennant A1 Tony Nickonchuk YR 2013 UL http://www.cfp.ca/content/59/5/503.abstract AB