Mannava S, Plate JF, Whitlock PW, Callahan MF, Seyler TM, Koman LA, Smith TL, Tuohy CJ. Evaluation of in vivo rotator cuff muscle function after acute and chronic detachment of the supraspinatus tendon: an experimental study in an animal model. J Bone Joint Surg Am. 2011 Sep 21; 93(18):1702-11.