Peiper, U Mechanisms of activating contractions or relaxations in isolated helical strips of coronary artery. [electronic resource] - Pflugers Archiv : European journal of physiology 1972 - Suppl 332:R75 p. digital Publication Type: Journal Article ISSN: 0031-6768 Subjects--Topical Terms: Adrenergic alpha-Antagonists--pharmacologyAdrenergic beta-Antagonists--pharmacologyAnimalsCoronary Vessels--physiologyMuscle Contraction--drug effectsMuscles--physiologyPotassium--pharmacologySwine