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Tryptophan degradation in irritable bowel syndrome: evidence of indoleamine 2,3-dioxygenase activation in a male cohort

Gerard Clarke*, Peter Fitzgerald, John F Cryan, Eugene M Cassidy, Eamonn M Quigley and Timothy G Dinan

  • * Corresponding author: Gerard Clarke

  • † Equal contributors

BMC Gastroenterology 2009, 9:6  doi:10.1186/1471-230X-9-6