Site of increased resistance to coronary flow in patients with angina pectoris and normal epicardial coronary arteries.
D000787:Angina Pectoris / Q000503:physiopathology*; D001160:Arterioles / Q000503:physiopathology; D001794:Blood Pressure; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000503:physiopathology*; D006801:Humans; D012039:Regional Blood Flow; D014655:Vascular Resistance