1 School of Medicine, NanKai University, 94 Wei Jin Road, Tianjin, 300071, People's Republic of China.
2 Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital, 51 Fu Cheng Road, Beijing, 100048, People's Republic of China.
3 Academy of Medical Engineering and Translational Medicine, Tianjin University, 92 Weijin Road, Tianjin, 300072, People's Republic of China.
4 School of Medicine, NanKai University, 94 Wei Jin Road, Tianjin, 300071, People's Republic of China. fuxiaobing@vip.sina.com.
5 Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital, 51 Fu Cheng Road, Beijing, 100048, People's Republic of China. fuxiaobing@vip.sina.com.
6 Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital, 51 Fu Cheng Road, Beijing, 100048, People's Republic of China. stellarahuang@sina.com.