[MO23] Mini-Oral Session 23　肝胆膵4（胆嚢・胆道 その他）
【E】

[MO23-3] Benefit of Second-line Chemotherapy in Patients with Advanced Biliary Tract Cancer : A Propensity Score analysis

^○Kijjakom Thanasombunsukh^1,2, Jiraporn Khorana^2,3, Apichat Tantraworasin^2,3, Chaiyut Charoentum⁴ (1.Department of Internal Medicine, Lampang Hospital, Ministry of Public Health, 2.Center for Clinical Epidemiology and Clinical Statistics, Faculty of Medicine, Chiang Mai University, 3.Department of Surgery, Faculty of Medicine, Chiang Mai University, 4.Department of Internal Medicine, Faculty of Medicine, Chiang Mai University)