The graphic registration of the normal heart sounds

[1] [Anonymous], 1923, MODERN ASPECTS CIRCU

[2] BILLING, 1931, LANCET, V2, P198

[3] BRAUN ME, 1934, REV ARGENT CARDIOL, V1, P101

[4] Bridgman EW, 1915, HEART-J STUD CIRC, V6, P41

[5] CAEIRO A, 1937, REV ARGENT CARDIOL, V4, P71

[6] CIEHORE AC, 1911, J EXP MED, V14, P339

[7] Clerc A, 1934, CR SOC BIOL, V116, P1017

[8] DUCHOSAL P, 1935, ARCH MAL COEUR, V28, P345

[9] Einthoven W, 1907, ARCH GESAMTE PHYSIOL, V117, P461

[10] EINTHOVEN W, 1894, ARCH GES PHYSL, V57, P617

[1] [Anonymous], 1923, MODERN ASPECTS CIRCU

[2] BILLING, 1931, LANCET, V2, P198

[3] BRAUN ME, 1934, REV ARGENT CARDIOL, V1, P101

[4] Bridgman EW, 1915, HEART-J STUD CIRC, V6, P41

[5] CAEIRO A, 1937, REV ARGENT CARDIOL, V4, P71

[6] CIEHORE AC, 1911, J EXP MED, V14, P339

[7] Clerc A, 1934, CR SOC BIOL, V116, P1017

[8] DUCHOSAL P, 1935, ARCH MAL COEUR, V28, P345

[9] Einthoven W, 1907, ARCH GESAMTE PHYSIOL, V117, P461

[10] EINTHOVEN W, 1894, ARCH GES PHYSL, V57, P617