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Radiological diagnosis and staging of hilar cholangiocarcinoma 
Carlos Valls, Sandra Ruiz, Laura Martinez, David Leiva 
World J Gastrointest Oncol 5(7):115-126. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.115
Laparoscopic staging in hilar cholangiocarcinoma: Is it still justified? 
Fernando Rotellar, Fernando Pardo 
World J Gastrointest Oncol 5(7):127-131. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.127
Risk factors and classifications of hilar cholangiocarcinoma 
Miguel Angel Suarez-Munoz, Jose Luis Fernandez-Aguilar, Belinda Sanchez-Perez, Jose Antonio Perez-Daga, Beatriz Garcia-Albiach, Ysabel Pulido-Roa, Naiara Marin-Camero, Julio Santoyo-Santoyo 
World J Gastrointest Oncol 5(7):132-138. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.132
Principles of surgical resection in hilar cholangiocarcinoma 
Emilio Ramos 
World J Gastrointest Oncol 5(7):139-146. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.139
Outcome of surgical resection in Klatskin tumors 
Alejandro Serrablo, Luis Tejedor 
World J Gastrointest Oncol 5(7):147-158. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.147
Pathological aspects of so called "hilar cholangiocarcinoma" 
Víctor M Castellano-Megías, Carolina Ibarrola-de Andrés, Francisco Colina-Ruizdelgado 
World J Gastrointest Oncol 5(7):159-170. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.159
Chemotherapy for cholangiocarcinoma: An update 
Natalia Ramírez-Merino, Santiago Ponce Aix, Hernán Cortés-Funes 
World J Gastrointest Oncol 5(7):171-176. Published online Jul 15, 2013. doi: 10.4251/wjgo.v5.i7.171