1. Department of Rheumatology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
2. Department of Burn Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
3. Department of Blood Transfusion, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
4. Tissue Engineering and Reparative Dentistry, School of Dentistry, Cardiff University, Heath Park, Cardiff CF14 4XY, UK