They usually go by LMP unless the difference between in EDD from LMP and u/s is more than 10 days in which case they'll use the u/s. At least this is what was done by the OBs I worked on clinical trials with.
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They usually go by LMP unless the difference between in EDD from LMP and u/s is more than 10 days in which case they'll use the u/s. At least this is what was done by the OBs I worked on clinical trials with.
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