Placebo effect in peptic ulcer and other gastroduodenal disorders.
D005762:Gastroenterology / Q000628:therapy*; D006801:Humans; D010437:Peptic Ulcer / Q000628:therapy*; D015990:Placebo Effect; D010919:Placebos
D010919:Placebos
GASTROENTEROLOGY/therapy; PEPTIC ULCER/therapy; PLACEBOS