Affiliation: | aProgramme Infection and Cancer, Tumour Virology Division F010, German Cancer Research Center (DKFZ), Heidelberg, Germany;bDepartment of General Surgery, University Hospital Heidelberg, Heidelberg, Germany;cInstitute of Immunology, University Hospital Heidelberg, Heidelberg, Germany ;dInstitut de Recherche contre les Cancers de l''Appareil Digestif (IRCAD), Strasbourg, France |