title: September 2016 Corrigendum.
abstract: Corrections to an article published in the May 2016 issue of JOSPT: Lentz TA, Beneciuk JM, Bialosky JE, Zeppieri G Jr, Dai Y, Wu SS, George SZ. Development of a yellow flag assessment tool for orthopaedic physical therapists: results from the Optimal Screening for Prediction of Referral and Outcome (OSPRO) cohort J Orthop Sports Phys Ther 2016;46(5):327-345. doi:10.2519/jospt.2016.6487 J Orthop Sports Phys Ther 2016;46(9):813. doi:10.2519/jospt.2016.46.9.813.