1. Tianjin Medical University Tianjin China
2. Key Laboratory of Tissue Repair and Regeneration of PLA, and Beijing Key Research Laboratory of Skin Injury, Repair and RegenerationFirst Hospital Affiliated to General Hospital of PLA Beijing China
3. School of MedicineNankai University Tianjin China
4. Wound Healing and Cell Biology Laboratory, Institute of Basic Medical SciencesGeneral Hospital of PLA Beijing China