title: [Preexisting conditions in respiratory tract infections].
mesh_terms: D001327:Autoimmune Diseases / Q000150:complications; D002648:Child; D002675:Child, Preschool; D019411:Clinical Laboratory Techniques; D005260:Female; D006801:Humans; D007223:Infant; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D012137:Respiratory System / Q000276:immunology; D015619:Respiratory System Abnormalities; D012141:Respiratory Tract Infections / Q000209:etiology*; D014132:Trachea / Q000000981:diagnostic imaging
vernacular_title: Pre-existente afwijkingen bij luchtweginfecties.