1. Data Center and Health Outcomes Research Unit; Italian Group for Adult Hematologic Diseases; Rome Italy
2. Institute of Applied Health Sciences; University of Aberdeen; Aberdeen United Kingdom
3. Department of Surgery; Memorial Sloan Kettering Cancer Center; New York New York
4. Department of Surgery; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California
5. Department of Medical Psychology; Academic Medical Center/University of Amsterdam; Amsterdam The Netherlands
6. Laboratory of Molecular and Cellular Immunology; Scientific Hospitalization and Care Institution San Raffaele Pisana; Rome Italy
7. Bristol Centre for Surgical Research, School of Social and Community Medicine, University of Bristol; Bristol United Kingdom