RT Journal Article SR Electronic T1 Author Response JF Physical Therapy JO Phys Ther FD American Physical Therapy Association SP 858 OP 859 DO 10.2522/ptj.20090233.ar VO 90 IS 6 A1 Stanton, Tasha R. A1 Hancock, Mark J. A1 Maher, Christopher G. A1 Koes, Bart W. YR 2010 UL http://jcore-reference.highwire.org/content/90/6/858.abstract AB