title: Effect of atropine premedication on respiratory complication.
mesh_terms: D001285:Atropine / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology*; D011229:Preanesthetic Medication / Q000009:adverse effects*; D012120:Respiration Disorders / Q000139:chemically induced*
chemical_list: D001285:Atropine