title: The 'see-saw' theory of parturition.
mesh_terms: D000022:Abortion, Spontaneous / Q000378:metabolism; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D003338:Corpus Luteum / Q000502:physiology; D004412:Dysmenorrhea / Q000188:drug therapy; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009215:Myometrium / Q000378:metabolism; D009288:Naproxen / Q000627:therapeutic use; D007752:Obstetric Labor, Premature / Q000378:metabolism; D010920:Placenta / Q000502:physiology; D011247:Pregnancy; D011374:Progesterone / Q000378:metabolism / Q000502:physiology*; D011453:Prostaglandins / Q000378:metabolism*; D011458:Prostaglandins E / Q000378:metabolism; D011460:Prostaglandins F / Q000378:metabolism; D014599:Uterus / Q000502:physiology*
chemical_list: D011453:Prostaglandins; D011458:Prostaglandins E; D011460:Prostaglandins F; D011374:Progesterone; D009288:Naproxen; D002118:Calcium