Denny: The significance of late systolic murmurs. American Heart Journal, St. Louis, 1963, 66: 443. J. B. Barlow, C. K. Bosman, J. W. C.
[…] and a late systolic MR murmur are commonly heard.
Twenty-one (28%) had echocardiographic evidence of MVP, whereas 18 had auscultatory findings of a nonejection click or late systolic murmur.