title: Serial electrocardiograms and clinical observations in diphtheria.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000150:complications / Q000175:diagnosis* / Q000401:mortality; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009205:Myocarditis / Q000175:diagnosis* / Q000209:etiology / Q000401:mortality