共 7 条
[3]
LOW 2ND TRIMESTER MATERNAL SERUM UNCONJUGATED ESTRIOL IN PREGNANCIES WITH DOWNS-SYNDROME
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1988, 95 (04)
:330-333
[5]
JACOBS I, 1989, HUM REPROD, V4, P1