1. Department
of Orthopedic Surgery, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai 200233, People’s Republic of China
2. School
of Materials Science and Engineering, Tongji University, Shanghai 200092, People’s Republic of China
3. Department
of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
4. Department
of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People’s Republic of China