[1] Hosp Special Surg, Rugby Res & Injury Prevent Grp Inc, 535 E 70th St, New York, NY 10021 USA
[2] Missouri Orthopaed Inst, Columbia, MO USA
[3] Thompson Lab Regenerat Orthopaed, Columbia, MO USA
[4] Suny Downstate Med Ctr, Brooklyn, NY 11203 USA
[5] Lake Erie Coll Osteopath Med, Bradenton, FL USA
[6] Hosp Special Surg, 535 E 70th St, New York, NY 10021 USA