共 50 条
- [2] EFFECT OF ESTIMATING GESTATIONAL-AGE BY ULTRASOUND CEPHALOMETRY ON THE SPECIFICITY OF ALPHA-FETOPROTEIN SCREENING FOR OPEN NEURAL-TUBE DEFECTS BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1982, 89 (12): : 1050 - 1053
- [3] MATERNAL ALPHA-FETOPROTEIN SCREENING FOR DOWNS-SYNDROME NEW ENGLAND JOURNAL OF MEDICINE, 1987, 317 (06): : 376 - 378
- [4] ESTIMATIONS OF GESTATIONAL-AGE AND SCREENING FOR DOWNS-SYNDROME BRITISH MEDICAL JOURNAL, 1991, 302 (6786): : 1207 - 1207
- [5] ESTIMATIONS OF GESTATIONAL-AGE AND SCREENING FOR DOWNS-SYNDROME BRITISH MEDICAL JOURNAL, 1991, 302 (6782): : 965 - 965
- [7] SCREENING FOR DOWNS-SYNDROME USING SERUM ALPHA-FETOPROTEIN BRITISH MEDICAL JOURNAL, 1985, 291 (6491): : 349 - 349
- [9] SCREENING FOR DOWNS-SYNDROME USING SERUM ALPHA-FETOPROTEIN BRITISH MEDICAL JOURNAL, 1985, 291 (6497): : 740 - 740