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Response to double-blind, placebo-controlled wheat challenge in 270 wheat-sensitive non-celiac IBS patients from symmptom diary. Y axis shows symptom scores on a visual analog scale 0–100, where 0= no symptoms and 100 equals maximum symptoms for. (A) Overall symptoms, (B) Bloating, (C) Abdominal pain and (D) Stool consistency. Reproduced with permission of the editor from Carroccio et al. [114].
