1. Department of Orthopedic Surgery; Brigham and Women's Hospital; Harvard Medical School; Boston Massachusetts
2. Harvard Stem Cell Institute; Harvard University; Cambridge Massachusetts
3. Department of Joint Surgery; First Affiliated Hospital of Sun Yat-sen University; Guangzhou Guangdong China
4. Department of Clinical Laboratory; First Affiliated Hospital of Guangxi Medical University; Nanning Guangxi China
5. Department of Oral and Maxillofacial Surgery; Harvard School of Dental Medicine; Boston Massachusetts