Abstract:Review question / Objective: The aim of this systematic review is to explore the magnitude of the placebo effect in randomized controlled trials for diarrhea-type irritable bowel syndrome and to understand possible relevant factors that affect the placebo effect. Condition being studied: Irritable bowel syndrome is a chronic functional gastrointestinal disorder characterized by abdominal pain related to defecation and a change in frequency and form of stool. Epidemiological study indicates that the prevalence … Show more
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