共 50 条
- [46] SERUM SCREENING FOR DOWNS-SYNDROME BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1993, 100 (09): : 875 - 877
- [47] MATERNAL SERUM ALPHA-FETOPROTEIN LEVELS IN A TRIPLET PREGNANCY WITH 2 PAPYRACEOUS FETUSES ARCHIVES OF GYNECOLOGY, 1986, 237 (03): : 127 - 133
- [48] SERUM SCREENING FOR DOWNS-SYNDROME BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1994, 101 (06): : 557 - 558