[Spread of chronic upper respiratory tract and ear diseases among the students of Krasnodar Territory].
D002648:Child; D002908:Chronic Disease; D004427:Ear Diseases / Q000453:epidemiology*; D006801:Humans; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012424:Rural Population; D012426:Russia; D014505:Urban Population
Rasprostranennost' khronicheskikh zabolevaniĭ verkhnikh dykhatel'nykh puteĭ i ukha u uchashchikhsia Krasnodarskogo kraia.