title: [Lung cancer in persons under 50 years of age (various problems of epidemiology and surgical treatment].
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009031:Moscow; D012737:Sex Factors
vernacular_title: Rak legkogo u lits molozhe 50 let (nekotorye voprosy épidemiologii i khirurgicheskogo lecheniia).