[Hourly distribution of the beginning of labor & delivery].
D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000706:statistics & numerical data*; D011247:Pregnancy
DELIVERY; LABOR/statistics
Disribuiçäo horária do inĺcio do trabalho de parto e do parto.