How many times ultrasound is safe during pregnancy?

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Tags

1. #establish
2. #early
3. #uterine
4. #opposed
5. #pregnancy
6. #confirm
7. #fetal
8. #tubular
9. #recommends
10. #example
11. #weeks
12. #viable
13. #ectopic
14. #whether
15. #ultrasound
16. #heartbeat
17. #ultrasounds