TY - RPRT TI - The Penn shoulder score: reliability and validity. AU - Brian G Leggin AU - Lori A Michener AU - Michael A Shaffer AU - Susan K Brenneman AU - Joseph P Iannotti AU - Gerald R Williams PY - 2006 DO - 10.2519/jospt.2006.36.3.138 UR - https://pubmed.ncbi.nlm.nih.gov/16596890/ ID - 16596890 ER -