Nägele's rule

Nägele's rule definition - medical

Nägele's rule

noun
A rule used as a means of estimating date of delivery by counting back three months from the first day of the last menstrual period and adding seven days.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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