title: Letter: Patients with angina pectoris and normal coronary arteriograms.
mesh_terms: D000293:Adolescent; D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000187:drug effects; D006801:Humans; D008875:Middle Aged; D009449:Neurocirculatory Asthenia / Q000175:diagnosis; D011433:Propranolol / Q000494:pharmacology
chemical_list: D011433:Propranolol