1. National Engineering Laboratory for Oral Regenerative Medicine; West China Hospital of Stomatology; Sichuan University; Chengdu, China
2. State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu, China
3. Department of Oral and Maxillofacial Surgery; West China School of Stomatology; Sichuan University; Chengdu, China
4. Department of Pedodontics; West China School of Stomatology; Sichuan University; Chengdu, China