title: Letter: "Myocarditis" and hepatitis B antigen.
mesh_terms: D000328:Adult; D004562:Electrocardiography; D006509:Hepatitis B / Q000150:complications; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D009205:Myocarditis / Q000175:diagnosis*
chemical_list: D006511:Hepatitis B Antigens