PT - JOURNAL ARTICLE AU - Frederick A. Heupler, Jr. TI - Current concepts of Prinzmetal’s variant form of angina pectoris DP - 1976 Sep 21 TA - Cleveland Clinic Journal of Medicine PG - 131--141 VI - 43 IP - 3 4099 - http://www.ccjm.org/content/43/3/131.short 4100 - http://www.ccjm.org/content/43/3/131.full SO - Cleve Clin J Med1976 Sep 21; 43