title: [Chronic otitis media in the Tumen Region: specific features of the course and therapeutic policy].
authors.forename: A I
authors.initials: AI
authors.lastname: Izvin
mesh_terms: D002391:Catchment Area, Health; D002908:Chronic Disease; D006801:Humans; D010035:Otitis Media, Suppurative / Q000453:epidemiology* / Q000601:surgery*; D015995:Prevalence; D012426:Russia / Q000453:epidemiology