Fig. 1From: Randomized, placebo-controlled, phase IV pilot study of ramosetron to evaluate the co-primary end points in male patients with irritable bowel syndrome with diarrheaImprovement in symptoms of the chief complaint that patients had before administration of the study drug. a Improvement in symptoms of the chief complaint that patients had before administration of the study drug. b Responder rate for improvement in symptoms of the chief complaint that patients had before administration of the study drug. Height: responder rate (%). Error bar: 95% CI. P values were calculated using the χ 2-testBack to article page