RT Journal Article SR Electronic T1 Effectiveness of Preoperative Physical Therapy for Elective Cardiac Surgery JF Demo Journal of Physical Therapy FD HighWire Press SP 160 OP 166 DO 10.demo/ptj.20130323 VO 95 IS 2 A1 Humphrey, Reed A1 Malone, Daniel YR 2015 UL http://demo.highwire.org/content/95/2/160.abstract AB