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2. The graphic registration of the normal heart action;Osborn;J. Med.,1941
3. The early diastolic heart sound (the so-called third heart sound);Thayer;Tr. A. Am. Physicians,1908
4. Further observations on the third heart sound;Thayer;Arch. Int. Med.,1909
5. The diastolic phases of the cardiac cycle in man;Burstein;Am. J. Physiol.,1932