RT Journal Article SR Electronic T1 Unintentional weight loss in older adults JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 443 OP 449 DO 10.1503/cmaj.101471 VO 183 IS 4 A1 Svetlana Stajkovic A1 Elizabeth M. Aitken A1 Jayna Holroyd-Leduc YR 2011 UL http://www.cmaj.ca/content/183/4/443.abstract