共 12 条
[1]
BENEDETTI TJ, 1980, OBSTET GYNECOL, V59, P335
[3]
GRAPHAM RL, 1982, OBSTET GYNECOL, V59, P607
[4]
HURT J, 1983, J PEDIATR, V102, P450
[6]
JOHNSON JWC, 1981, OBSTET GYNECOL, V57, P547
[8]
LIGGINS GC, 1972, PEDIATRICS, V50, P515
[9]
MEAD PB, 1977, J REPROD MED, V19, P3