title: The onset of labor. Part II.
mesh_terms: D001095:Arachidonic Acids / Q000378:metabolism; D005260:Female; D005994:Glycerophosphates / Q000378:metabolism; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D011453:Prostaglandins / Q000378:metabolism; D014590:Uterine Contraction
chemical_list: D001095:Arachidonic Acids; D005994:Glycerophosphates; D011453:Prostaglandins