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The Irritable Bowel Syndrome Outcome Study (IBSOS): Rationale and design of a randomized, placebo-controlled trial with 12month follow up of self- versus clinician-administered CBT for moderate to severe irritable bowel syndrome
Lackner, J., Keefer, L., Jaccard, J., Firth, R., Brenner, D., Bratten, J., Dunlap, L., Ma, C., & Byroads, M. (2012). The Irritable Bowel Syndrome Outcome Study (IBSOS): Rationale and design of a randomized, placebo-controlled trial with 12month follow up of self- versus clinician-administered CBT for moderate to severe irritable bowel syndrome. Contemporary Clinical Trials.