1 Plastic Reconstructive and Aesthetic Surgery, Villa Salaria Clinic, Rome 00139, Italy zhangyixin6688@hotmail.com.
2 Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China.
3 Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China zhangyixin6688@hotmail.com.
4 Plastic and Reconstructive Surgery Unit, Campus Bio-Medico University, Rome 00128, Italy.