RT Journal Article SR Electronic T1 Loneliness in older adults JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E476 OP E476 DO 10.1503/cmaj.181655 VO 191 IS 17 A1 Nathan M. Stall A1 Rachel D. Savage A1 Paula A. Rochon YR 2019 UL http://www.cmaj.ca/content/191/17/E476.abstract