共 25 条
- [1] Allen G., 1984, PERINATAL EPIDEMIOLO, P152
- [2] BENIRSCHKE K, 1989, MATERNAL FETAL MED P, P565
- [3] TWINNING RATE IN EUROPE DURING THE WAR [J]. BMJ-BRITISH MEDICAL JOURNAL, 1959, 1 (JAN3): : 29 - 30
- [4] SCREENING FOR FETAL NEURAL TUBE DEFECTS BY MATERNAL PLASMA ALPHA-FETOPROTEIN DETERMINATION [J]. BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1977, 84 (08): : 568 - 573
- [5] DUDLEY DKL, 1986, SEMIN PERINATOL, V10, P65
- [7] Grennert L, 1978, Prog Clin Biol Res, V24 Pt C, P109
- [8] HAMMOND J, 1961, MARSHALLS PHYSL REPR, V2
- [9] HEUSER RL, 1967, DHEW SERIES, V21