Comparative effects of oral verapamil and propranolol on exercise-induced myocardial ischemia and energetics in patients with coronary artery disease: single-blind placebo crossover evaluation using radionuclide ventriculography.
Comparative effects of oral verapamil and propranolol on exercise-induced myocardial ischemia and energetics in patients with coronary artery disease: single-blind placebo crossover evaluation using radionuclide ventriculography. Am Heart J. 1982 Jun; 103(6):978-85.