1 Radiation Oncology Department, Cruces University Hospital/Biocruces Bizkaia Health Research Institute/Department of Surgery, Radiology and Physical Medicine of the University of the Basque Country (UPV/EHU), Barakaldo, Vizcaya, Spain. jon.cacicedofernandezbobadilla@osakidetza.net.
2 Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain.