title: Negative U waves and peaked T waves without ST changes during spontaneous and ergonovine-induced vasospastic angina.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis*; D000792:Angiography; D003329:Coronary Vasospasm / Q000175:diagnosis*; D003331:Coronary Vessels; D004562:Electrocardiography; D004874:Ergonovine; D006801:Humans; D008297:Male
chemical_list: D004874:Ergonovine