1 Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Division of Gastroenterology and Hepatology, Faculty of Medicine, International Islamic University of Malaysia, Kuantan, Malaysia.
2 Duke-NUS Medical School, Gleneagles Medical Centre, Singapore.
3 Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. ida.hilmi@gmail.com.