1. Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of MedicineUniversity of CaliforniaLos Angeles California
2. Department of Orthopedic Surgery, Chulabhorn Hospital, HRH Princess Chulabhorn College of Medical ScienceChulabhorn Royal AcademyBangkok Thailand
3. Department of Orthopedic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing China
4. Department of PathologyUniversity of CaliforniaLos Angeles California