title: Placental transfer of meperidine HCl. II.
mesh_terms: D000818:Animals; D001769:Blood; D001784:Blood Gas Analysis; D001794:Blood Pressure / Q000187:drug effects; D002339:Carotid Arteries; D002849:Chromatography, Gas; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D008431:Maternal-Fetal Exchange; D008614:Meperidine / Q000008:administration & dosage / Q000097:blood / Q000378:metabolism*; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D012756:Sheep; D013997:Time Factors; D014470:Umbilical Cord; D014471:Umbilical Veins
chemical_list: D008614:Meperidine