| scholarly article | Q13442814 |
| P356 | DOI | 10.1002/PD.1970130704 |
| P953 | full work available at URL | https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpd.1970130704 |
| https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1002/pd.1970130704 | ||
| P698 | PubMed publication ID | 7692430 |
| P2093 | author name string | J. N. Macri | |
| P. D. Buchanan | |||
| K. Spencer | |||
| F. Muller | |||
| D. Aitken | |||
| A. Boue | |||
| K. Garver | |||
| P2860 | cites work | Risk of Down's syndrome and amniocentesis rate | Q42921444 |
| Human chorionic gonadotropin levels in pregnancies with aneuploid fetuses. | Q46029438 | ||
| Free Beta Human Choriogonadotropin in Down's Syndrome Screening: A Multicentre Study of its Role Compared with other Biochemical Markers | Q67464371 | ||
| Free beta-hCG as first-trimester marker for fetal trisomy | Q67537231 | ||
| Early detection of Down's syndrome using free beta human choriogonadotropin | Q67537940 | ||
| First-trimester maternal serum biochemical indicators in Down syndrome | Q67663835 | ||
| Maternal serum Down syndrome screening: Free β-protein is a more effective marker than human chorionic gonadotropin | Q67673897 | ||
| First-trimester biochemical screening for Down syndrome | Q69924894 | ||
| Free β-Chorionic Gonadotropin: A Cross-Reactivity Study of Two Immunometric Assays Used in Prenatal Maternal Serum Screening for Down's Syndrome | Q72070376 | ||
| P433 | issue | 7 | |
| P407 | language of work or name | English | Q1860 |
| P921 | main subject | Down syndrome | Q47715 |
| P304 | page(s) | 557-562 | |
| P577 | publication date | 1993-07-01 | |
| P1433 | published in | Prenatal Diagnosis | Q15760059 |
| P1476 | title | First-trimester free beta (hCG) screening for Down syndrome | |
| First‐trimester free beta (hCG) screening for Down syndrome | |||
| P478 | volume | 13 |
| Q38170863 | A historical and practical review of first trimester aneuploidy screening |
| Q24241578 | Antenatal screening for Down's syndrome |
| Q24236033 | Antenatal screening for Down's syndrome: generic protocol |
| Q36308492 | First and second trimester serum tests with and without first trimester ultrasound tests for Down's syndrome screening. |
| Q33768998 | First trimester screening for aneuploidy: serum biochemical markers |
| Q24187589 | First trimester serum tests for Down's syndrome screening |
| Q36308489 | First trimester ultrasound tests alone or in combination with first trimester serum tests for Down's syndrome screening |
| Q45291831 | First-trimester Down syndrome screening: free beta-human chorionic gonadotropin and pregnancy-associated plasma protein A. |
| Q74598371 | First-trimester biochemical markers for Down syndrome |
| Q34333074 | First-trimester biochemical screening for Down syndrome |
| Q71620967 | First-trimester biochemical screening for Down syndrome with the use of PAPP-A, AFP, and beta-hCG |
| Q73070410 | Markers for Down's syndrome in early pregnancy |
| Q71808334 | Maternal serum screening for fetal Down's syndrome, a retrospective study |
| Q21245542 | New discoveries on the biology and detection of human chorionic gonadotropin |
| Q36754874 | Prenatal screening for fetal aneuploidy |
| Q33958921 | Prenatal screening for fetal aneuploidy in singleton pregnancies |
| Q35190677 | Prenatal screening for trisomy 18 with free beta human chorionic gonadotrophin as a marker |
| Q36783335 | Prenatal screening methods for aneuploidies |
| Q73481833 | Screening for Down syndrome during first trimester: a prospective study using free beta-human chorionic gonadotropin and pregnancy-associated plasma protein A |
| Q22252964 | Second trimester serum tests for Down's Syndrome screening |
| Q53375961 | The 7th international conference on early prenatal diagnosis: Some personal impressions |
| Q24186912 | Urine tests for Down's syndrome screening |
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