Cholangiocarcinoma

• The first hospital of Lanzhou university — Lanzhou, Gansu, China
• The first affiliated hospital of Xi 'an jiaotong university — Xi'an, Shaanxi, China
• Tianjin Nankai Hospital — Tianjin, Tianjin Municipality, China

Not specified

• Fondazione Policlinico Universitario A Gemelli IRCCS — Rome, RM, Italy

• Amsterdam UMC — Amsterdam, Netherlands

• Department of Interventional Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education),Peking University Cancer Hospital and Institute — Beijing, China

• Beijing Tsinghua Chang Gung Hospital — Beijing, Beijing Municipality, China

• Department of Biliary and Pancreatic Surgery, Tongji Hospital, Affiliated Tongji Medical College, Huazhong University of Science and Technology — Wuhan, Hubei, China

• Rajavithi Hospital — Bangkok, Thailand

• Erasmus MC — Rotterdam, South Holland, Netherlands

• Hepatopancreatobiliary Surgery Institute of Gansu Province — Lanzhou, Gansu, China