Effect of physical stress on 'R' wave amplitude in comparison to ST segment changes in patients of angina pectoris.
D000328:Adult; D000787:Angina Pectoris / Q000503:physiopathology*; D004562:Electrocardiography; D006334:Heart Function Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion