1. Division of Hematology, Mayo Clinic, Rochester, MN, USA
2. Global Health Economics, Amgen (Europe) GmbH, Rotkreuz, Switzerland
3. Global Health Economics, Amgen, South San Francisco, CA, USA
4. Global Health Economics, Amgen, Thousand Oaks, CA, USA
5. School of Medicine, National and Kapodistrian University of Athens, Alexandra Hospital, Athens, Greece