RT Journal Article SR Electronic T1 Taking psychological well-being to heart JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1453 OP 1454 DO 10.1503/cmaj.121288 VO 184 IS 13 A1 An Pan A1 Kathryn M. Rexrode YR 2012 UL http://www.cmaj.ca/content/184/13/1453.abstract