共 50 条
- [35] FETAL CHROMOSOMAL ANEUPLOIDIES AND MATERNAL SERUM ALPHA-FETOPROTEIN LEVELS IN FIRST TRIMESTER LANCET, 1986, 2 (8499): : 165 - 166
- [39] PREGNANCY OUTCOMES AFTER INCREASING MATERNAL SERUM ALPHA-FETOPROTEIN LEVELS OBSTETRICS AND GYNECOLOGY, 1989, 74 (01): : 17 - 20