title: Blood concentrations of pethidine and pentazocine in mother and infant at time of birth.
mesh_terms: D001692:Biological Transport; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D008297:Male; D008431:Maternal-Fetal Exchange; D008614:Meperidine / Q000097:blood* / Q000652:urine; D010423:Pentazocine / Q000097:blood* / Q000652:urine; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy
chemical_list: D008614:Meperidine; D010423:Pentazocine