共 9 条
[1]
BERNSTINE RL, 1961, FETAL ELECTROCARDIOG
[4]
JOELSSON I, 1964, Acta Obstet Gynecol Scand, V43, P338
[5]
KENDALL B, 1964, AM J OBSTET GYNECOL, V90, P340
[7]
FETAL ELECTROCARDIOGRAM, SHOWING CARDIAC MALFORMATION, INCLUDING HEART BLOCK
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1960, 173 (11)
:1217-1219
[8]
REDMAN TF, 1958, J OBSTET GYNAECOL, V65, P304
[9]
SMITH JJ, 1960, OBSTET GYNECOL, V15, P761