1. Clinical Oncology Department, Hospital Universitario Virgen Macarena, Avenida Dr. Fedriani s/n, 41009 Sevilla, Spain
2. Biochemistry Department, Hospital Universitario Virgen Macarena, Avenida Dr. Fedriani s/n, 41009 Sevilla, Spain
3. Pathology Department, Hospital Universitario Virgen Macarena, Avenida Dr. Fedriani s/n, 41009 Sevilla, Spain
4. Clinical Oncology Department, Hospital Universitario Virgen del Rocío, Avenida Manuel Siurot s/n, 41013 Sevilla, Spain
5. Statistics Department, Universidad de Sevilla, Avenida Dr. Fedriani s/n, 41009 Sevilla, Spain
6. Clinical Oncology Department, Hospital Universitario Virgen de la Victoria, Campus de Teatinos s/n, 29010 Málaga, Spain
7. Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pío XII 55, 31008 Pamplona, Spain