PT - JOURNAL ARTICLE AU - Riddle, Daniel L. AU - Stratford, Paul W. AU - Cleland, Joshua A. TI - Author Response AID - 10.demo/ptj.2013.93.5.707 DP - 2013 May 01 TA - Demo Journal of Physical Therapy PG - 707--708 VI - 93 IP - 5 4099 - http://demo.highwire.org/content/93/5/707.short 4100 - http://demo.highwire.org/content/93/5/707.full