Affiliation: | 1. Division of Sports Medicine, Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A;2. Department of Anatomy and Cell Biology, Rush University Medical Center, Chicago, Illinois, U.S.A;3. Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A;4. Cartilage Restoration Center at Rush, Chicago, Illinois, U.S.A |