Traini, Chiara, et al. “Inner and Outer Portions of Colonic Circular Muscle: Ultrastructural and Immunohistochemical Changes in Rat Chronically Treated With Otilonium Bromide”. Italian Journal of Anatomy and Embryology, vol. 119, no. 1, Mar. 2015, p. 195, doi:10.36253/ijae-2548.