1. Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China.
2. Institute of Health and Biomedical Innovation, the Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia.
3. Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China.