1 Department of Otorhinolaryngology, Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200011, China.
2 Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
3 Department of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China.
4 Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China. Electronic address: zhangyifan82@126.com.