title: A practical guide to pediatric electrocardiography. Part one.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009205:Myocarditis / Q000175:diagnosis; D012214:Rheumatic Heart Disease / Q000175:diagnosis