AU - Norquist, Barbara M. AU - Goldberg, Benjamin A. AU - MatsenIII, Frederick A. TI - Challenges in Evaluating Patients Lost to Follow-up in Clinical Studies of Rotator Cuff Tears* PT - JOUR DP - 2000 TA - The Journal of Bone & Joint Surgery PG - 838-838 VI - 82 IP - 6 AID - [doi] 4100 - http://dx.doi.org/ SO - The Journal of Bone & Joint Surgery June 1, 2000 82(6):838