1. Department of Medical Oncology; VU University Medical Center; Amsterdam; The Netherlands
2. Department of Medical Oncology; Carrara Civic Hospital; Carrara; Italy
3. Department of Medical Oncology; San Raffaele Scientific Institute; Milan; Italy
4. Department of Medical Oncology A; Regina Elena National Cancer Institute; Rome; Italy
5. Unit Medical Oncology-2; Azienda-Ospedaliera-Universitaria Pisa; Pisa; Italy