title: Cardiac imaging--decrease in the left ventricular ejection fraction after exercise.
mesh_terms: D000368:Aged; D002302:Cardiac Output; D004912:Erythrocytes; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging*; D006334:Heart Function Tests; D006801:Humans; D005082:Physical Exertion; D011877:Radionuclide Imaging; D013318:Stroke Volume; D013667:Technetium
chemical_list: D013667:Technetium