Coronary artery spasm and myocardial ischemia.
D000788:Angina Pectoris, Variant / Q000139:chemically induced / Q000503:physiopathology; D003327:Coronary Disease / Q000150:complications / Q000188:drug therapy / Q000503:physiopathology*; D004874:Ergonovine / Q000031:analogs & derivatives; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology; D005996:Nitroglycerin / Q000627:therapeutic use; D013035:Spasm / Q000150:complications / Q000503:physiopathology
D005996:Nitroglycerin; D004874:Ergonovine