title: [Clinical value of QT and its variance].
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Yang
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D006973:Hypertension / Q000175:diagnosis; D009203:Myocardial Infarction / Q000175:diagnosis