RT Journal A1 Arendt, Elizabeth T1 Hip-Strengthening Exercises Before Functional Exercises Reduced Pain in Women with Patellofemoral Pain Syndrome JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2012 FD May 16 VO 94 IS 10 SP 940 OP 940 DO 10.2106/JBJS.9410.ebo274 UL http://dx.doi.org/10.2106/JBJS.9410.ebo274 AB