1. Department of Plastic Surgery, Affiliated Hospital of Hebei Engineering University, Handan, Hebei 056002, P.R. China
2. Department of Burn and Plastic Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
3. Department of Orthopedics 1, Handan Central Hospital, Handan, Hebei 056000, P.R. China
4. Department of Plastic Surgery, Beijing Tsinghua Changgung Hospital, Beijing 102218, P.R. China
5. Department of Dermatology, Affiliated Hospital of Hebei Engineering University, Handan, Hebei 056002, P.R. China