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A member asked:
If there is a 1wk margin of error for a 12 wk ultrasound, then would crl measurements of 62 mm be inaccurate? so i may have been 11or13wks, not 12wks?
A doctor has provided 1 answer
No: If done correctly, shouldn't be off by more than 3 days or so.
Answered 3/10/2013
5.3k views
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