Ferraro, S [HR/QT ratio during ergometric test: influence of ischemia and beta blocking therapy]. [electronic resource] - Cardiologia (Rome, Italy) Sep 1990 - 741-6 p. digital Publication Type: Comparative Study; English Abstract; Journal Article ISSN: 0393-1978 Subjects--Topical Terms: Adrenergic beta-Antagonists--pharmacologyAngina Pectoris--drug therapyAtenolol--pharmacologyElectrocardiographyExercise TestFemaleHeart--drug effectsHeart Rate--drug effectsHumansMaleMiddle AgedRegression Analysis