Psyllium and the irritable bowel syndrome.
D003109:Colonic Diseases, Functional / Q000188:drug therapy*; D006801:Humans; D010919:Placebos; D011205:Povidone / Q000627:therapeutic use; D011620:Psyllium / Q000627:therapeutic use*
D010919:Placebos; D011620:Psyllium; D011205:Povidone