title: [Comparative data on the mean length of hospital treatment in different types of cities].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007902:Length of Stay; D008875:Middle Aged; D012424:Rural Population; D014586:USSR; D014505:Urban Population
vernacular_title: Sravnitel'nye dannye o sredneĭ dlitel'nosti statsionarnogo lecheniia v gorodakh raznogo tipa.