[Surdo-audiologic services in the Saratov region].
D000328:Adult; D001298:Audiology; D006296:Health Services / Q000600:supply & distribution*; D006310:Hearing Aids; D006311:Hearing Disorders / Q000628:therapy*; D006801:Humans; D008875:Middle Aged; D012426:Russia
Surdoaudiologicheskaia pomoshch' v Saratovskoĭ oblasti.