The stethograph

[1] BARKER L, 1910, B J HOPKINS HOSP, V21, P237

[2] Use of the electrostethograph for recording heart sounds - Preliminary report [J]. JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1935, 104 : 628 - 631

[3] Frequency characteristics of heart and lung sounds [J]. JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1925, 84 : 1793 - 1795

[4] EINTHOVEN, 1894, ARCH GES PHYSL, V57, P617

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

[6] FOWLER EP, 1922, AUDIOMETRIC METHODS

[7] FRANK, 1904, MUNCHEN MED WOCHENSC, V51, P953

[8] FREDERICK HA, 1925, STETHOPHONE ELECT ST

[9] HENRIQUES CV, 1937, LANCET, V1, P686

[10] HIRSCHFELDER AD, 1918, DIS HEART AORTA, P162

[1] BARKER L, 1910, B J HOPKINS HOSP, V21, P237

[2] Use of the electrostethograph for recording heart sounds - Preliminary report [J]. JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1935, 104 : 628 - 631

[3] Frequency characteristics of heart and lung sounds [J]. JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1925, 84 : 1793 - 1795

[4] EINTHOVEN, 1894, ARCH GES PHYSL, V57, P617

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

[6] FOWLER EP, 1922, AUDIOMETRIC METHODS

[7] FRANK, 1904, MUNCHEN MED WOCHENSC, V51, P953

[8] FREDERICK HA, 1925, STETHOPHONE ELECT ST

[9] HENRIQUES CV, 1937, LANCET, V1, P686

[10] HIRSCHFELDER AD, 1918, DIS HEART AORTA, P162