title: Letter: Preanesthetic medication.
mesh_terms: D006801:Humans; D011183:Postoperative Complications; D011229:Preanesthetic Medication / Q000009:adverse effects; D012601:Scopolamine / Q000009:adverse effects; D012602:Scopolamine Derivatives
chemical_list: D012602:Scopolamine Derivatives; D012601:Scopolamine