1Prinzmetal M, Kennamer R, Merliss R, et al. Angina pectoris I:variant form of angina pectoris. Am J Med, 1959,27:235.
2Yasue H, Horio Y, Nakamura N, et al. Induction of coronary artery spasm by acetylcholine in patients with variant angina: possible role of the parasympathetic nervous system in the pathogenesis of coronary artery spasm. Circulation, 1986,74:955-963.
3Egashira K, Katsuda Y, Mohri M, et al. Basal relaease of endothelium-derived nitric oxide at site of apasm in patients with variant angina. J Am Coll Cardiol, 1996,27:1444-1449.