1. Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
2. Department of Hand and Plastic Surgery, Second Affiliated Hospital,Wenzhou Medical College, Wenzhou, Zhejiang Province, People's Republic of China, , Department of Dermatology, University Hospital Schleswig-Holstein, University of Lübeck, Lübeck, Germany