1 Department of Otorhinolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
2 Department of Respiratory and Critical Care Medicine, Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, Chengdu, China.
3 State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
4 Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.