[Coronary spasm in nocturnal angina (author's transl)].
D000788:Angina Pectoris, Variant / Q000175:diagnosis*; D003329:Coronary Vasospasm / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D012895:Sleep, REM / Q000502:physiology