title: [Clinical significance of U-wave inversion during attacks of variant angina].
mesh_terms: D000328:Adult; D000368:Aged; D000788:Angina Pectoris, Variant / Q000503:physiopathology*; D004562:Electrocardiography; D004874:Ergonovine; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic
chemical_list: D004874:Ergonovine