title: Placental drug transfer: methodological and therapeutic aspects.
mesh_terms: D000667:Ampicillin / Q000097:blood; D005260:Female; D006801:Humans; D007700:Kinetics; D008431:Maternal-Fetal Exchange; D008433:Mathematics; D008614:Meperidine / Q000031:analogs & derivatives / Q000097:blood; D004364:Pharmaceutical Preparations / Q000097:blood*; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy
chemical_list: D004364:Pharmaceutical Preparations; D000667:Ampicillin; D008614:Meperidine; C002752:normeperidine