1. Chronic Disease Programme (UFIEC), Instituto de Salud Carlos III, 28220 Madrid, Spain
2. Centro de Investigaciones Biológicas Margarita Salas, CSIC, 28040 Madrid, Spain
3. Translational Oncology Division, OncoHealth Institute, Health Research Institute-University Hospital Fundación Jiménez Díaz-Universidad Autónoma de Madrid, 28040 Madrid, Spain
4. Surgical Digestive Department, Hospital Universitario Clínico San Carlos, 28040 Madrid, Spain
5. Surgical Pathology Department, Hospital Universitario Clínico San Carlos, 28040 Madrid, Spain
6. Molecular Pathology and Therapeutic Targets Group, La Paz University Hospital (IdiPAZ), 28046 Madrid, Spain