1. Department of Otorhinolaryngology-Head and Neck Surgery, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
2. Department of Nuclear Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
3. Department of Otorhinolaryngology-Head and Neck Surgery, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710004, China