title: R wave amplitude changes during stress testing. Comparison with ST segment depression and angiographic correlation.
mesh_terms: D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D004562:Electrocardiography; D005080:Exercise Test; D005188:False Negative Reactions; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography