1. Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration Jinan China
2. Cutaneous Biology Research Center Massachusetts General Hospital, Harvard Medical School Boston MA USA
3. Huashan Hospital, Fudan University Shanghai China
4. Department of Stomatology Liaocheng People's Hospital Liaocheng China