Thanapaisal, Ngampit, Kalyarat Sanpoch, Nimanong Hupreechasat, Khaimook Ontisong, Wanichada Armat, and Wanarat Chinpan. 2013. “Pre-Operative Information Needs for Cholangiocarcinoma Patients in Srinagarind Hospital, Khon Kaen University,Thailand”. Srinagarind Medical Journal 23 (4):360-65. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13096.