title: [Role of certain factors in the development of postoperative pneumonias in gastrointestinal tract tumors].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000209:etiology*; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology*; D012426:Russia; D012621:Seasons
vernacular_title: Rol' nekotorykh faktorov v razvitii posleoperatsionnykh pnevmonii pri opukholiakh zheludochno-kishechnogo trakta.