Initiation of labour.
D000626:Aminopeptidases / Q000378:metabolism; D000653:Amniotic Fluid; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007743:Labor, Obstetric / Q000502:physiology*; D010121:Oxytocin / Q000378:metabolism*; D011247:Pregnancy
D010121:Oxytocin; D000626:Aminopeptidases