Warnnissorn, N., Atisook, K., Lohsirirwat, D., Ratanarapee, S., Laohaudomphan, P. and Netsakhon, S. (2003) “Isospora belli infection associated with Chronic Cholecystitis and Sclerosing Cholangitis in Immuncompetent Host : A Case Report”, Siriraj Medical Journal, 55(7), pp. 419–424. available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245433 (accessed: 27 August 2026).