title: Upper gastrointestinal endoscopy: is premedication or topical anesthesia necessary?
authors.forename: S
authors.initials: S
authors.lastname: Rana
authors.forename: L S
authors.initials: LS
authors.lastname: Pal
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000779:Anesthetics, Local; D004384:Duodenoscopy / Q000379:methods*; D004945:Esophagoscopy / Q000379:methods*; D005260:Female; D005773:Gastroscopy / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010353:Patient Education as Topic; D011292:Premedication
chemical_list: D000779:Anesthetics, Local