title: [Iron deficiency in children with chronic recurrent diseases of upper respiratory tract (author's transl)].
mesh_terms: D000293:Adolescent; D000747:Anemia, Hypochromic / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012008:Recurrence; D012140:Respiratory Tract Diseases / Q000097:blood* / Q000209:etiology
vernacular_title: Niedobór zelaza u dzieci z przewlekajacymi sie i nawracajacymi schorzeniami górnych dróg oddechowych.