RT Journal Article SR Electronic T1 Wait times increasing for hip and knee replacement JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E325 OP E325 DO 10.1503/cmaj.109-4445 VO 185 IS 8 A1 Cullen Bird YR 2013 UL http://www.cmaj.ca/content/185/8/E325.abstract AB