Copyright
        ©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
    Core Tip

 
         
                         
                 
                 
                 
                 
         
                         
                         
                        