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©2009 The WJG Press and Baishideng. All rights reserved.
World J Gastroenterol. Nov 14, 2009; 15(42): 5279-5286
Published online Nov 14, 2009. doi: 10.3748/wjg.15.5279
Published online Nov 14, 2009. doi: 10.3748/wjg.15.5279
Comorbidity negatively influences prognosis in patients with extrahepatic cholangiocarcinoma
Mario Fernández-Ruiz, Juan-Manuel Guerra-Vales, Department of Internal Medicine, University Hospital “12 de Octubre”, Avenue Córdoba, s/n, Universidad Complutense, Madrid 28041, Spain
Francisco Colina-Ruizdelgado, Hospital Tumor Registry, University Hospital “12 de Octubre”, Avenue Córdoba, s/n, Universidad Complutense, Madrid 28041, Spain
Author contributions: Fernández-Ruiz M and Guerra-Vales JM designed the research; Fernández-Ruiz M performed the research; Fernández-Ruiz M analyzed the data; Fernández-Ruiz M and Guerra-Vales JM wrote the paper; Guerra-Vales JM and Colina-Ruizdelgado F revised the final manuscript.
Correspondence to: Mario Fernández-Ruiz, MD, Department of Internal Medicine, University Hospital “12 de Octubre”, Avenue Córdoba, s/n, Universidad Complutense, Madrid 28041, Spain. mario_fdezruiz@yahoo.es
Telephone: +34-91-7639959 Fax: +34-91-7639959
Received: September 16, 2009
Revised: October 12, 2009
Accepted: October 19, 2009
Published online: November 14, 2009
Revised: October 12, 2009
Accepted: October 19, 2009
Published online: November 14, 2009
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