@inbook{1140225333, author={Douglas E. Rollins and Donald K. Blumenthal}, title={Drugs Used for the Treatment of Bowel Disorders}, booktitle={Workbook and Casebook for Goodman and Gilman's The Pharmacological Basis of Therapeutics}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1140225333} }