Nirav V. Patel; Jayvadan K. Patel; Shreeraj H. Shah; Jagruti J Patel. Design, Development and in Vitro Evaluation of Mesalamine Tablets Containing Pectin and Chitosan for Colon-Specific Drug Delivery. Int. J. Res. Pharm. Sci. 2010, 1, 94-102.