REFERENCES
- Dock, W., Grandell, F. and Taubman, F.: The physiologic third heart sound: Its mechanism and relation to protodiastolic gallop. Am. Heart J. 50: 449, 1955.
- Groom, D.: The effect of background noise on cardiac auscultation. Am. Heart J. 52: 781, 1956.
- Leatham, A.: Phonocardiography. Brit. M. Bull. 8: 333, 1952.
- Leatham, A.: Splitting of the first and second heart sounds. Lancet 2: 607, 1954.
- Leonard, J. J., Weissler, A. M. and Warren, J. V.: Observations on the mechanism of atrial gallop rhythm. Circulation 17: 1007, 1958.
- Levine, S. A. and Harvey, W. P.: Clinical Auscultation of the Heart. Philadelphia, W. B. Saunders Company, 1949.
- Mounsey, P.: The early diastolic sound of constrictive pericarditis. Brit. Heart J. 17: 143, 1955.
- Rappaport, M. B. and Sprague, H. B.: Physiologic and physical laws that govern auscultation and their clinical application. Am. Heart J. 21: 257, 1941.
- Warren, J. V., Leonard, J. J. and Weissler, A. M.: Gallop rhythm. Ann. Int. Med. 48: 580, 1958.
- Wolferth, C. C. and Margolies, A.: Gallop rhythm and the physiological third heart sound. Am. Heart J. 8: 441, 1933.