1. Department of Medical Oncology, University Hospital Complex of Ourense, Galician Healthcare Service, 32005 Ourense, Spain
2. Department of Pathology, Clinical University Hospital of Santiago de Compostela, Health Research Institute of Santiago de Compostela, Galician Healthcare Service, 15706 Santiago de Compostela, Spain
3. Department of Endocrinology, Clinical University Hospital of Santiago de Compostela, Health Research Institute of Santiago de Compostela, Galician Healthcare Service, 15706 Santiago de Compostela, Spain
4. Department of Epidemiology, Clinical University Hospital of Santiago de Compostela, Health Research Institute of Santiago de Compostela, Galician Healthcare Service, 15706 Santiago de Compostela, Spain