共 6 条
[1]
EFFECT OF MATERNAL WEIGHT ON MATERNAL SERUM ALPHA-FETOPROTEIN
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1982, 89 (01)
:93-93
[4]
RICHARDS ID, 1969, BRIT J PREV SOC MED, V23, P218
[5]
RECENT ADVANCES IN SCREENING FOR NEURAL-TUBE DEFECTS AND DOWNS-SYNDROME
[J].
BAILLIERES CLINICAL OBSTETRICS AND GYNAECOLOGY,
1987, 1 (03)
:649-676