共 6 条
[1]
BAIN K, 1949, PEDIATRICS, V4, P454
[2]
BROWN EW, 1945, AM J DIS CHILD, V70, P314
[3]
DUNHAM EC, 1948, CHILDRENS BUREAU PUB, V325, P2
[5]
EFFECT OF OBSTETRIC DIFFICULTIES AND MATERNAL DISEASE ON PREMATURE INFANT MORTALITY
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1949, 141 (13)
:904-908