title: Prevention of fatal aspiration syndrome.
mesh_terms: D000773:Anesthesia, Obstetrical / Q000009:adverse effects*; D003864:Depression, Chemical; D005260:Female; D005746:Gastric Emptying / Q000187:drug effects; D006801:Humans; D008614:Meperidine / Q000009:adverse effects; D007744:Obstetric Labor Complications / Q000517:prevention & control*; D011015:Pneumonia, Aspiration / Q000517:prevention & control*; D011247:Pregnancy
chemical_list: D008614:Meperidine