| 单词 |
nägele's rule |
| 释义 |
DictionarySeeruleNägele's rule
Nägele's rule [na´gĕ-lēz] a method for calculating the estimated (or expected) date of confinement (EDC) or of delivery (EDD): count back three months from the first day of the last menstrual period, and then add one year and seven days. An unavoidable error of plus or minus two weeks may occur. |
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