De Schepper HU, De Man JG, Moreels TG, Pelckmans PA, De Winter BY. Review article: gastrointestinal sensory and motor disturbances in inflammatory bowel disease - clinical relevance and pathophysiological mechanisms. Aliment Pharmacol Ther. 2008 Apr;27(8):621–37. doi: 10.1111/j.1365-2036.2008.03624.x. PMID: 18221407.