title: [Cor pulmonale and recurrent and protracted pneumonia in children].
mesh_terms: D000367:Age Factors; D002648:Child; D002908:Chronic Disease; D006801:Humans; D011014:Pneumonia / Q000150:complications*; D011660:Pulmonary Heart Disease / Q000209:etiology*; D012008:Recurrence
vernacular_title: Serce płucne a nawracajace i przewlekajace sie zapalenia płuc u dzieci