1 State Key Laboratory of Military Stomatology, Centre for Tissue Engineering, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
2 Department of Orthopedics Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
3 Department of Stomatology, PLA Xizang Military Region General Hospital, Lhasa, Tibet, People's Republic of China.
4 Department of Stomatology, PLA 301th Hospital, Beijing, People's Republic of China.
5 Department of Orthopedics Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China. Zhuojingluo@sina.com.
6 State Key Laboratory of Military Stomatology, Centre for Tissue Engineering, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China. yanjin@fmmu.edu.cn.