title: Ephedrine as a marker of intravascular injection in laboring parturients.
authors: J
authors: J
authors: Fong
mesh_terms: D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D001794:Blood Pressure / Q000187:drug effects*; D004809:Ephedrine / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D007743:Labor, Obstetric; D011247:Pregnancy
chemical_list: D004809:Ephedrine