1. Department of Surgery Brown University Alpert Medical School and Rhode Island Hospital Providence Rhode Island USA
2. Biostatistics Core Lifespan Hospital System Providence Rhode Island USA
3. Department of Orthopaedics Brown University Alpert Medical School and Rhode Island Hospital Providence Rhode Island USA
4. Peking Union Medical College Hospital Peking Union Medical College and Chinese Academy of Medical Sciences Dongchen Beijing China
5. Hospital of the University of Pennsylvania Philadelphia Pennsylvania USA
6. School of Nursing University of Pennsylvania Philadelphia Pennsylvania USA