RT Journal Article SR Electronic T1 Tackling immobility in hospitalized seniors JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1666 OP 1667 DO 10.1503/cmaj.109-4281 VO 184 IS 15 A1 Nathan Stall YR 2012 UL http://www.cmaj.ca/content/184/15/1666.abstract