What the term " Obstetric week " means and than he differs from usual week?
Pregnancy lasts 40 obstetric weeks. 1 I week begin in the first day of last menses. In a week also 7 days, but the beginning or a weekend accordingly can not coincide with Monday or Sunday
Pasenjuk A.M.
10.08.2004, 06:21
Obstetric week has 7 days and it is considered from the first day of last menses
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