Methods for Estimating the Due Date by the American College of Obstetricians and Gynecologists
= Methods for Estimating the Due Date by the American College of Obstetricians and Gynecologists
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https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2017/05/methods-for-estimating-the-due-date
Committee Opinion No.700, May 2017. “Background” and “Clinical Considerations in the First Trimester” explain menstrual dating and early <ultrasonography>.