title: Patient preparations to decrease bowel gas: evaluation by an ultrasonographic measurement.
mesh_terms: D002400:Cathartics / Q000008:administration & dosage; D005215:Fasting; D005740:Gases; D006801:Humans; D007422:Intestines / Q000502:physiology*; D011292:Premedication; D012841:Simethicone / Q000008:administration & dosage; D014463:Ultrasonography
chemical_list: D002400:Cathartics; D005740:Gases; D012841:Simethicone