1. Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam and University of Amsterdam, Amsterdam, the Netherlands.
2. Department of Second Dental Center, Shanghai Ninth People's Hospital, School of Medicine; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
3. Shanghai Key Laboratory of Stomatology, National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai, China.
4. Department of Regenerative Biomaterials, Radboud University Medical Center, Nijmegen, the Netherlands.
5. Yantai Stomatology Hospital, Yantai, China.