1. Department of Pathology; ISGlobal, Hospital Clínic - Universitat de Barcelona; Barcelona Spain
2. Unit of Infections and Cancer; Cancer Epidemiology Research Program, Catalan Institute of Oncology, IDIBELL, L'Hospitalet de Llobregat; Barcelona Spain
3. CIBER Epidemiologia y Salud Pública; Barcelona Spain
4. Department of Pathology; Hospital del Mar; Barcelona Spain
5. Department of Pathology; Hospital General d'Hospitalet, L'Hospitalet de LLobregat; Barcelona Spain
6. Division of Molecular Diagnostics of Oncogenic Infections, Research Program Infection, Inflammation and Cancer; German Cancer Research Center (DKFZ); Heidelberg Germany
7. DDL Diagnostic Laboratory; Rijswijk The Netherlands
8. Faculty of Medicine, Institute of Gynecology, Obstetrics and Neonatology, Hospital Clínic - Institut d´Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona; Barcelona Spain