Zhai Feng, Associate Chief Physician Specializes in the diagnosis and treatment of pediatric otorhinolaryngological diseases, with extensive clinical experience in various types of rhinitis, adenoid hypertrophy, congenital hearing impairment, vertigo, hearing loss, otitis media, neck masses, and obstructive sleep apnea. Main research directions include: neurobiological mechanisms of pediatric sleep, epidemiology and mechanisms of neonatal hearing impairment, application of portable sleep monitoring in pediatric snoring, immunotherapy for pediatric allergic rhinitis, and diagnosis and treatment of pediatric vertigo. Currently serves as a Standing Committee Member of the Expert Committee on Deafness Prevention and Treatment under the Otorhinolaryngology Professional Committee of the Chinese Association of Integrative Medicine, a member of the Pediatric Group of the Sleep Medicine Professional Committee of the Chinese Medical Doctor Association, a Youth Committee Member of the Auditory and Vestibular Medicine Branch of the Shanghai Medical Association, a member of the Otorhinolaryngology-Head and Neck Surgery Group of the Pediatric Allergy Professional Committee of the Chinese Maternal and Child Health Association, and a Youth Committee Member of the Otorhinolaryngology-Head and Neck Surgery Professional Committee of Pudong New Area, Shanghai. Overseas training experience: Completed postdoctoral research in the field of sleep disorders at Beth Israel Deaconess Medical Center, Harvard Medical School; served as a visiting scholar at the Ear Laboratory of Yale University School of Medicine, conducting research on the electrophysiological mechanisms of hearing impairment.