1. Medical Oncology Department, Albacete University Hospital and Translational Research Unit, Albacete, Spain
2. Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre and the Department of Medicine, University of Toronto, Toronto, Canada
3. Department of Medical Oncology and Hematology, Kantonsspital St. Gallen, Switzerland
4. Department of Medical Oncology, Institute of Oncology, Ljubljana, Slovenia
5. Department of Medical Oncology and Hematology, CancerCare Manitoba and University of Manitoba, Winnipeg, Canada
6. Centro de Investigación del Cáncer CIC-CSIC, Universidad de Salamanca, Salamanca, Spain