![First‐trimester screening for trisomy 21 by free beta‐human chorionic gonadotropin and pregnancy‐associated plasma protein‐A: impact of maternal and pregnancy characteristics - Kagan - 2008 - Ultrasound in Obstetrics & Gynecology - Wiley First‐trimester screening for trisomy 21 by free beta‐human chorionic gonadotropin and pregnancy‐associated plasma protein‐A: impact of maternal and pregnancy characteristics - Kagan - 2008 - Ultrasound in Obstetrics & Gynecology - Wiley](https://obgyn.onlinelibrary.wiley.com/cms/asset/cd845c66-0ba2-49d1-a3c7-782e4d19e7d8/mfig007.gif)
First‐trimester screening for trisomy 21 by free beta‐human chorionic gonadotropin and pregnancy‐associated plasma protein‐A: impact of maternal and pregnancy characteristics - Kagan - 2008 - Ultrasound in Obstetrics & Gynecology - Wiley
Determination of the median values of maternal serum free β-hCG, PAPP-A and fetal NT measurement at 11-13 weeks in relation to
![First trimester PAPP-A serum levels and long-term metabolic outcome of mothers and their offspring | Scientific Reports First trimester PAPP-A serum levels and long-term metabolic outcome of mothers and their offspring | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-020-61830-5/MediaObjects/41598_2020_61830_Fig1_HTML.png)
First trimester PAPP-A serum levels and long-term metabolic outcome of mothers and their offspring | Scientific Reports
![PPT - Prenatal screening of Down's syndrom in the first and second trimester of pregnancy PowerPoint Presentation - ID:6610442 PPT - Prenatal screening of Down's syndrom in the first and second trimester of pregnancy PowerPoint Presentation - ID:6610442](https://image3.slideserve.com/6610442/first-trimester-screening-l.jpg)
PPT - Prenatal screening of Down's syndrom in the first and second trimester of pregnancy PowerPoint Presentation - ID:6610442
![Performance characteristics of Elecsys free βhCG and PAPP-A for first trimester trisomy 21 risk assessment in gestational weeks 8+0 to 14+0 Performance characteristics of Elecsys free βhCG and PAPP-A for first trimester trisomy 21 risk assessment in gestational weeks 8+0 to 14+0](https://www.degruyter.com/document/doi/10.1515/labmed-2015-0084/asset/graphic/j_labmed-2015-0084_fig_004.jpg)
Performance characteristics of Elecsys free βhCG and PAPP-A for first trimester trisomy 21 risk assessment in gestational weeks 8+0 to 14+0
![Association of low levels of first trimester Pregnancy Associated Plasma Protein (PAPP-A) with adverse pregnancy outcomes: An observational study Association of low levels of first trimester Pregnancy Associated Plasma Protein (PAPP-A) with adverse pregnancy outcomes: An observational study](https://www.oatext.com/img/OGR-1-116-S001.gif)
Association of low levels of first trimester Pregnancy Associated Plasma Protein (PAPP-A) with adverse pregnancy outcomes: An observational study
![Pregnancy-Associated Plasma Protein A (PAPP-A) as a potential biomarker for risk stratification assistance of nonviable pregnancy Pregnancy-Associated Plasma Protein A (PAPP-A) as a potential biomarker for risk stratification assistance of nonviable pregnancy](https://www.oatext.com/img/COGRM-5-241-g003.gif)
Pregnancy-Associated Plasma Protein A (PAPP-A) as a potential biomarker for risk stratification assistance of nonviable pregnancy
![JCM | Free Full-Text | Both Low and High PAPP-A Concentrations in the First Trimester of Pregnancy Are Associated with Increased Risk of Delivery before 32 Weeks in Twin Gestation JCM | Free Full-Text | Both Low and High PAPP-A Concentrations in the First Trimester of Pregnancy Are Associated with Increased Risk of Delivery before 32 Weeks in Twin Gestation](https://pub.mdpi-res.com/jcm/jcm-09-02099/article_deploy/html/images/jcm-09-02099-g001.png?1596120108)
JCM | Free Full-Text | Both Low and High PAPP-A Concentrations in the First Trimester of Pregnancy Are Associated with Increased Risk of Delivery before 32 Weeks in Twin Gestation
![Cureus | Importance of Low Pregnancy Associated Plasma Protein-A (PAPP-A) Levels During the First Trimester as a Predicting Factor for Adverse Pregnancy Outcomes: A Prospective Cohort Study of 2636 Pregnant Women Cureus | Importance of Low Pregnancy Associated Plasma Protein-A (PAPP-A) Levels During the First Trimester as a Predicting Factor for Adverse Pregnancy Outcomes: A Prospective Cohort Study of 2636 Pregnant Women](https://assets.cureus.com/uploads/figure/file/467674/lightbox_762b0c5040be11ed85e0c52b4e9de2c3-Figure-1.png)
Cureus | Importance of Low Pregnancy Associated Plasma Protein-A (PAPP-A) Levels During the First Trimester as a Predicting Factor for Adverse Pregnancy Outcomes: A Prospective Cohort Study of 2636 Pregnant Women
Median values for plasma hCG (A) and plasma PAPP-A (B) from gestational... | Download Scientific Diagram
![Medians and correction factors for biochemical and ultrasound markers in Chinese women undergoing first‐trimester screening for trisomy 21 - Sahota - 2009 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library Medians and correction factors for biochemical and ultrasound markers in Chinese women undergoing first‐trimester screening for trisomy 21 - Sahota - 2009 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library](https://obgyn.onlinelibrary.wiley.com/cms/asset/3f859efd-ecc7-4a82-9cee-e7134e21ff33/mfig002.jpg)