Nasca, R J Current concepts review. Subacromial impingement syndrome (79-A: 1854-1868, Dec. 1997) [electronic resource] - The Journal of bone and joint surgery. American volume Dec 1998 - 1852-3 p. digital Publication Type: Comment; Letter ISSN: 0021-9355 Subjects--Topical Terms: HumansShoulder--pathologyShoulder Impingement Syndrome--pathologyShoulder Joint--pathology