1, Wang Guopeng: chief physician, associate professor, head and neck surgery of otorhinolaryngology, Beijing Friendship Hospital, specializing in otitis media, otitis externa, cochlear implantation, preauricular fistula, auricle tumor, tympanic membrane perforation, cholesteatoma of middle ear, cholesteatoma of external auditory canal, sigmoid sinus diverticulum, secretory otitis media, eustachian tube dysfunction, deafness, dizziness, facial paralysis, etc.

2. Cheng Lei: Deputy Chief Physician of Otolaryngology Head and Neck Surgery in Millennium Hospital, specializing in common diseases, difficult diseases, allergic rhinitis, sinusitis, endoscopic sinus surgery, pharyngitis, snoring, vocal polyp, tonsillitis, throat surgery, tinnitus, deafness, adenoidal hypertrophy in children, rhinitis in children and thyroid diseases.