title: Inefficiency of antacid in prevention of aspiration pneumonia.
mesh_terms: D000768:Anesthesia, General; D000773:Anesthesia, Obstetrical; D000863:Antacids / Q000627:therapeutic use*; D002927:Cimetidine / Q000627:therapeutic use; D005260:Female; D006801:Humans; D011015:Pneumonia, Aspiration / Q000517:prevention & control*; D011247:Pregnancy; D011300:Preoperative Care
chemical_list: D000863:Antacids; D002927:Cimetidine