1 Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
2 Department of Otorhinolaryngology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Otorhinolaryngology Hospital, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
3 Otorhinolaryngology Hospital, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.