1. School of Stomatology, Dalian Medical University, Dalian, China
2. The Affiliated Stomatological Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
3. Department of Dermatology, The Second Hospital of Dalian Medical University, Dalian, China
4. Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China