RT Journal Article SR Electronic T1 Author Response JF Demo Journal of Physical Therapy FD HighWire Press SP 433 OP 435 DO 10.demo/ptj.2011.91.3.433 VO 91 IS 3 A1 Kigin, Colleen M. A1 Rodgers, Mary M. A1 Wolf, Steven L. YR 2011 UL http://demo.highwire.org/content/91/3/433.abstract AB