_:vb50956748 "An intestinal disease that is characterized by chronic abdominal pain, discomfort, bloating, and alteration of bowel habits in the absence of any detectable organic cause."^^ . _:vb50956748 . _:vb50956748 . _:vb50956748 . _:vb50956748 . _:vb50956748 . _:vb50956748 "url:http://en.wikipedia.org/wiki/Irritable_bowel_syndrome"^^ . _:vb50956748 "url:http://digestive.niddk.nih.gov/ddiseases/pubs/ibs/"^^ .