RT Journal Article SR Electronic T1 Invited Commentary JF Physical Therapy JO Phys Ther FD American Physical Therapy Association SP 323 OP 324 DO 10.2522/ptj.20140009.ic2 VO 94 IS 3 A1 Deutscher, Daniel A1 Horn, Susan D. YR 2014 UL http://jcore-reference.highwire.org/content/94/3/323.abstract AB