title: Multiple unusual abnormalities in the electrocardiogram in myxoedema.
mesh_terms: D004562:Electrocardiography; D005260:Female; D006801:Humans; D008875:Middle Aged; D009230:Myxedema / Q000150:complications*; D013610:Tachycardia / Q000150:complications* / Q000188:drug therapy; D013974:Thyroxine / Q000627:therapeutic use
chemical_list: D013974:Thyroxine