1Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, Spain
2Department of Systems Biology, Columbia University, New York, NY USA
3CIBERONC, Madrid, Spain
4ARC-Net Center for Applied Research on Cancer, Department of Diagnostics and Public Health, Verona, Italy
5Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
6Department of Oncology, Ramón y Cajal University Hospital, Madrid, Spain
7Instituto Ramón y Cajal de investigación sanitaria (IRYCIS), Madrid, and CIBERONC, Madrid, Spain
8Alcala University, Madrid, Spain
9HM CIOCC Madrid (Centro Integral Oncológico Clara Campal). Hospital Universitario HM Sanchinarro. Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
10Facultad HM de Ciencias de la Salud de la Universidad Camilo José Cela, Madrid, Spain
11Department of Pathology, Hospital del Mar—Parc de Salut Mar, Barcelona, Spain
12Department of Gastroenterology, Hospital Vall Hebron, Barcelona, Spain
13Hospitals Universitaris Arnau de Vilanova i Santa Maria, IRBLleida, UdL, Lleida, Spain
14CIBEREHD, Madrid, Spain
15Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
16Department of Surgery, Technical University of Munich, Munich, Germany
17Department of General, Visceral and Transplantation Surgery, Medical Faculty Heidelberg, University Heidelberg, Heidelberg, Germany
18Department of Surgery, Hospital 12 de Octubre, Madrid, Spain
19Institute of Biomedical Research of Salamanca, Salamanca, Spain
20Centre for Public Health, Belfast, Queen’s University Belfast, Belfast, UK
21College of Public Health, The University of Iowa, Iowa City, IA US
22Molecular Genetics Laboratory, General University Hospital of Elche, Elche, Spain
23Department of Medicine, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
24Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
25CIBERESP, Madrid, Spain
26Department of Gastroenterology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
27Department of Surgery, Hospital Universitario de Salamanca – IBSAL, Universidad de Salamanca, Salamanca; and CIBERONC, Madrid, Spain
28Barts Cancer Institute, Centre for Cancer Biomarkers and Biotherapeutics, Queen Mary University of London, London, UK
29Department of Gastroenterology, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain
30Department of Gastroenterology, University Hospital of Giessen and Marburg, Marburg, Germany
31Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
32National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
33Newcastle University, Institute of Health & Society, Newcastle, UK
34Department of Surgery, Hospital Vall Hebron, Barcelona, Spain
35Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Wittenber-Halle (Saale), Halle (Saale), Germany
36Department of Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
37Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stokholm, Sweden
38Epithelial Carcinogenesis Group, Spanish National Cancer Research Center (CNIO), Madrid, Spain
39Pompeu Fabra University, Barcelona, Spain