Correspondence to: James Emmanuel, Department of Gastroenterology and Hepatology, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia. E-mail:
sentulian83@gmail.com; Nagaraj Sriram, Department of Gastroenterology and Hepatology, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia. E-mail:
sentulian83@gmail.com; Chiam Keng Hoong, Department of Gastroenterology and Hepatology, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia. E-mail:
sentulian83@gmail.com; Raman Muthukaruppan, Department of Gastroenterology and Hepatology, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia. E-mail:
sentulian83@gmail.com