1. Oncology Department; Complejo Hospitalario de Navarra; Pamplona Spain
2. Medical University of Graz; Graz Austria
3. Graduate Institute of Preventive Medicine and Department of Public Health, College of Public Health; National Taiwan University; Taipei Taiwan
4. Hematology and Oncology Departments; University Hospital Hamburg; Hamburg Germany
5. Department of Oncology; Karolinska University Hospital; Stockholm Sweden
6. Department of Oncology-Pathology; Karolinska Institutet; Stockholm Sweden
7. Faculty of Medicine and Psychology, Sant'Andrea Hospital; Sapienza University of Rome; Rome Italy
8. Mount Vernon Hospital; London UK
9. University Hospital Center Rijeka; Rijeka Croatia
10. University of Leeds; St James's Institute of Oncology; Leeds UK