Superiority of verapamil to propranolol in stable angina pectoris: a double-blind, randomized crossover trail.
作者信息
Frishman W H, Klein N A, Strom J A, Willens H, LeJemtel T H, Jentzer J, Siegel L, Klein P, Kirschen N, Silverman R, Pollack S, Doyle R, Kirsten E, Sonnenblick E H