Functional collaterals in coronary artery spasm.
D003097:Collateral Circulation; D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000000981:diagnostic imaging / Q000503:physiopathology*; D003331:Coronary Vessels / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors