LITWAK, R S The effect of exercise upon the mean diastolic left atrial-left ventricular gradient in mitral stenosis. [electronic resource] - The Journal of thoracic surgery Oct 1957 - 449-64; discussion 464-8 p. digital Publication Type: Journal Article ISSN: 0096-5588 Subjects--Topical Terms: DiastoleExerciseHeart AtriaHeart VentriclesHumansMitral Valve Stenosis--physiology