Possible mechanisms of coronary-artery spasm.
D000787:Angina Pectoris / Q000209:etiology*; D000788:Angina Pectoris, Variant / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008881:Migraine Disorders / Q000503:physiopathology; D011928:Raynaud Disease / Q000503:physiopathology