1. Department of Otolaryngology, Head and Neck Surgery, Xiang Ya Hospital, Central South University, Changsha, Hunan 410008, China.
2. Department of Breast Surgery, Affiliated Cancer Hospital, Medical Center of Fudan University, Shanghai 200032, China.
3. Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY 14263; and Central South University, Changsha, Hunan 410008, China.