1. Cartilage Repair Center and Center for Regenerative Medicine, Brigham and Women’s Hospital, Harvard Medical School, Harvard University, Boston, MA, USA
2. Universidade Federal de São Paulo, São Paulo, Brazil
3. Einstein Medical Center, Philadelphia, PA, USA
4. Sports Medicine Center, Funabashi Orthopaedic Hospital, Funabashi, Japan
5. Hospital for Special Surgery, New York, NY, USA