title: Variation of T wave characteristics during the day.
authors.forename: H J
authors.initials: HJ
authors.lastname: Koch
mesh_terms: D002940:Circadian Rhythm / Q000502:physiology*; D004562:Electrocardiography; D006801:Humans; D008133:Long QT Syndrome / Q000503:physiopathology*; D009200:Myocardial Contraction / Q000502:physiology; D009203:Myocardial Infarction / Q000503:physiopathology*; D011379:Prognosis; D012680:Sensitivity and Specificity