Paterson, David L, Colleen P Brenton, and Jennifer M B Robson. “Three Cases of Diarrhoea from Penang, Malaysia”. Communicable Diseases Intelligence 20 (June 24, 1996): 299–300. Accessed April 5, 2026. https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/242.