What is tested in first trimester blood screen?

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Tags

1. #first
2. #determine
3. #ultrasound
4. #whether
5. #syndrome
6. #problems
7. #defects
8. #blood
9. #includes
10. #screening
11. #fetus
12. #birth
13. #abnormality
14. #chromosomal
15. #trimester
16. #heart
17. #helps