EFFECT OF EXERCISE ON CARDIAC PERFORMANCE  IN HUMAN SUBJECTS WITH MINIMAL HEART DISEASE.
D006321:Heart; D006331:Heart Diseases; D006334:Heart Function Tests; D006801:Humans; D008660:Metabolism; D009206:Myocardium; D005082:Physical Exertion
EXERTION; HEART DISEASES; HEART FUNCTION TESTS; METABOLISM; MYOCARDIUM