Continuing Medical Education: October 2014American Journal of Gastroenterology: October 2014 - Volume 109 - Issue 10 - p 1546 doi: 10.1038/ajg.2014.309 Review Buy Author InformationAuthors Article MetricsMetrics Efficacy of Prebiotics, Probiotics, and Synbiotics in Irritable Bowel Syndrome and Chronic Idiopathic Constipation: Systematic Review and Meta-analysis The American College of Gastroenterology is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The American College of Gastroenterology designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 Credit™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. © The American College of Gastroenterology 2014. All Rights Reserved.