共 9 条
[1]
Carothers AD, 1999, J MED GENET, V36, P386
[2]
Cuckle HS, 1999, PRENATAL DIAG, V19, P505, DOI 10.1002/(SICI)1097-0223(199906)19:6<505::AID-PD572>3.0.CO
[3]
2-6
[4]
ESTIMATING A WOMANS RISK OF HAVING A PREGNANCY ASSOCIATED WITH DOWNS-SYNDROME USING HER AGE AND SERUM ALPHA-FETOPROTEIN LEVEL
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1987, 94 (05)
:387-402
[5]
HOOK EB, 1994, SCREENING DOWNS SYND, P1
[7]
Mutton D, 1998, BRIT MED J, V317, P922
[8]
*OFF POP CENS SURV, 1990, BIRTH STAT SER FM1, P17