1. Faculty of Materials Science and
Chemical Engineering, Ningbo University, Ningbo 315211, P.R. China
2. Department of Orthopaedic Surgery, Affiliated Hospital of School
of Medicine, Ningbo University, Ningbo
315211, P.R. China
3. Department
of Orthopedic Surgery, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo 315040, P.R. China