THE MEASUREMENT OF THE DURATION OF THE QRS INTERVAL

[1] Ashman R., 1945, ESSENTIALS ELECTROCA

[2] GREWIN KE, 1948, ACTA MED SCAND S, V209, P1

[3] HOLZMANN M, 1947, KLINISCHE ELECKTROKA

[4] KATZ LN, 1947, ELECTROCARDIOGRAPHY

[5] The normal electrocardiogram I Analysis of the extremity derivations from 100 normal persons whose ages ranged from 30 to 50 years [J]. AMERICAN HEART JOURNAL, 1941, 22 : 625 - 644

[6] Lepeschkin E., 1951, MODERN ELECTROCARDIO, VI

[7] LUEDERITZ B, 1939, Z KREISLAUFFORSCH, V31, P625

[8] McGinn S, 1934, AM HEART J, V9, P642, DOI 10.1016/S0002-8703(34)90444-0

[9] NORMAL VARIATIONS IN MULTIPLE PRECORDIAL LEADS [J]. AMERICAN HEART JOURNAL, 1947, 34 (06) : 785 - 808

[10] NEFTEL A, 1941, Z KLIN MED, V140, P16

[1] Ashman R., 1945, ESSENTIALS ELECTROCA

[2] GREWIN KE, 1948, ACTA MED SCAND S, V209, P1

[3] HOLZMANN M, 1947, KLINISCHE ELECKTROKA

[4] KATZ LN, 1947, ELECTROCARDIOGRAPHY

[5] The normal electrocardiogram I Analysis of the extremity derivations from 100 normal persons whose ages ranged from 30 to 50 years [J]. AMERICAN HEART JOURNAL, 1941, 22 : 625 - 644

[6] Lepeschkin E., 1951, MODERN ELECTROCARDIO, VI

[7] LUEDERITZ B, 1939, Z KREISLAUFFORSCH, V31, P625

[8] McGinn S, 1934, AM HEART J, V9, P642, DOI 10.1016/S0002-8703(34)90444-0

[9] NORMAL VARIATIONS IN MULTIPLE PRECORDIAL LEADS [J]. AMERICAN HEART JOURNAL, 1947, 34 (06) : 785 - 808

[10] NEFTEL A, 1941, Z KLIN MED, V140, P16