1. Department of Maxillofacial & E.N.T. Oncology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy,Tianjin Cancer Institute, National Clinical Research Center for Cancer, Tianjin, 300060, China
2. Department of Thyroid Breast Hernia Surgery, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia Autonomous Region, 010017, China