共 28 条
[1]
AMIELTISON C, 1973, AM J OB GYN, V54, P809
[2]
BIRNHOLZ JC, 1984, AM SCI, V72, P608
[5]
BIRNHOLZ JC, 1982, PEDIATRICS, V70, P284
[8]
BIRNHOLZ JC, QUANTITATIVE FETAL U
[10]
BOWIE JD, 1983, ESTIMATING GESTATION