title: [Polycardiographic studies in the assessment of the cardiovascular system in cor pulmonale syndrome in children].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002319:Cardiovascular System / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D010690:Phlebography; D010701:Phonocardiography; D011660:Pulmonary Heart Disease / Q000175:diagnosis*; D014652:Vascular Diseases / Q000175:diagnosis*
vernacular_title: Badanie polikardiograficzne w ocenie układu krazenia w przewlekłym sercu płucnym u dzieci