JamesWE, LemanRB, AsseyME. Use of combined calcium channel blockers for therapy of refractory angina pectoris.J SC Med Assoc1986; 82: 65–8.
5.
PridaXE, GilmanJS, FeldmanRL, HillJA, PepineCJ, ScottE.Comparison of diltiazem and nifedipine alone and in combination in patients with coronary artery spasm.J Am Coll Cardiol1987; 9: 412–9.
6.
ToyosakiN, Toyo-OkaT, NatsumeTCombination therapy with diltiazem and nifedipine in patients with effort angina pectoris.Circulation1988; 77: 1370–5.
7.
FrishmanW, CharlapS, KimmelBDiltiazem, nifedipine, and their combination in patients with stable angina pectoris: effects on angina, exercise tolerance, and the ambulatory electrocardiographic ST segment.Circulation1988; 77: 774–86.