Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;
Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;
Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;
Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;
Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;
Otorhinolaryngology Hospital of the First Affiliated Hospital of Sun Yat-sen University. Institute of Otorhinolaryngology, Sun Y at-sen University, Guangzhou 510080, China;