Arthroscopic Superior Capsular Reconstruction Using “Sandwich” Patch Technique for Irreparable Rotator Cuff Tears oleh Shaohua Ding, B.M., Yunshen Ge, M.D., Minzhe Zheng, Ph.D., Wei Ding, M.M., Wenhe Jin, M.D., Jin Li, B.M., Shiyi Chen, M.D., Ph.D.