title: Amendment of recommendations for standardization of specifications for instruments in electrocardiography and vectorcardiography concerning safety and electrical shock hazards.
mesh_terms: D000056:Accident Prevention; D004556:Electric Injuries / Q000517:prevention & control*; D004562:Electrocardiography / Q000592:standards*; D014481:United States; D014672:Vectorcardiography / Q000592:standards*