Lerman, J Effects of nitrates on R-wave variations after exercise in coronary heart disease: differences in patients with and without angina pectoris. [electronic resource] - Chest Aug 1981 - 137-41 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0012-3692 Standard No.: 10.1378/chest.80.2.137 doi Subjects--Topical Terms: Administration, TopicalAdultAgedAngina Pectoris--physiopathologyCoronary Disease--physiopathologyElectrocardiographyExercise TestFemaleHeart Ventricles--physiopathologyHumansIsosorbide Dinitrate--administration & dosageMaleMiddle Aged