1. Department of Medical Oncology, Alcalá University, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Ramon y Cajal University Hospital, Madrid
2. Pancreatic Cancer Europe, Brussels
3. Department of Medical Oncology, Aragon Institute of Biomedical Research, Miguel Servet University Hospital, Zaragoza, Spain
4. Vall d’Hebrón Institute of Oncology, Vall d’Hebrón University Hospital, Barcelona
5. Department of Medical Oncology, Elche University Hospital, Alicante, Spain
6. Department of Medical Oncology, Asturias Central University Hospital, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
7. Department of Medical Oncology, Marques de Valdecilla University Hospital, Instituto de Investigación Valdecilla (IDIVAL), Santander, Spain
8. Department of Medical Oncology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Cordoba University, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Reina Sofia University Hospital, Cordoba, Spain
9. Department of Medical Oncology, University, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Ramon y Cajal University Hospital, Madrid
10. Department of Medical Oncology, Sabadell University Hospital, Parc Tauli, Sabadell, Spain
11. Unidad de Gestión Clínica Intercentros (UGCI) Medical Oncology, University Regional and Virgen Victoria Hospital, Instituto de Investigación Biomédica de Málaga (IBIMA), Malaga, Spain
12. Medical Oncology Department, Catalan Institute of Oncology (ICO), Badalona Applied Research Group in Oncology (B-ARGO), Germans Trias i Pujol University Hospital, Badalona, Spain
13. Department of Medical Oncology, A Coruña University Hospital, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
14. Department of Medical Oncology, University General Hospital Valencia, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Valencia University, Valencia, Spain
15. Department of Medical Oncology, Virgen del Rocio University Hospital, Instituto de Biomedicina de Sevilla (IBIS), Sevilla, Spain
16. Department of Medical Oncology, Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Universidad Complutense Madrid (UCM), Madrid
17. Spanish Cooperative Group for the Treatment of Digestive Tumors (TTD), Madrid
18. Department of Medical Oncology, Ramon y Cajal University Hospital, Madrid