title: Melatonin in the maternal and umbilical circulations during human parturition.
mesh_terms: D002940:Circadian Rhythm; D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D008550:Melatonin / Q000097:blood*; D011247:Pregnancy
chemical_list: D008550:Melatonin