RT Journal Article SR Electronic T1 HRT and antidepressants JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 237 OP 238 DO 10.1503/cmaj.1050024 VO 173 IS 3 A1 Keith Symon YR 2005 UL http://www.cmaj.ca/content/173/3/237.3.abstract