1. HINT Research Group (Holland Interuniversity Nifedipine/Metoprolol Trial). Early treatment of unstable angina in the coronary care unit: A randomised double-blind placebo-controlled comparison of recurrent ischaemia in patients treated with nifedipine or metoprolol or both. Br Heart J 1986;56:400–413.
2. Ardissino D, de Servi S, Salerno JA, et al. Efficacy, duration and mechanism of action of nifedipine in stable exercise-induced angina pectoris. Eur Heart J 1983;4:873–881.
3. Thaulow E, Guth BD, Ross J Jr. Role of calcium channel blockers in experimental exercise-induced ischemia. Cardiovasc Drugs Ther 1987;1:503–512.
4. Lichtlen PR, Engel H-J, Rafflenbeul W. Calcium entry blockers, especially nifedipine, in angina of effort: Possible mechanisms and clinical implications. In: LH Opie, ed. Calcium Antagonists and Cardiovascular Disease. New York: Raven Press, 1984:221–236.
5. Nayler WG, Ferrari R, Williams A. Protective effect of pretreatment with verapamil, nifedipine and propranolol on mitochondrial function in the ischemic and reperfused myocardium. Am J Cardiol 1980;46:242–248.