1. Division of Hematology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
2. Cancer Treatment Centers of America, Chicago, Illinois, USA
3. Unité de Médecine Interne: Maladies Auto-immunes et Pathologie Vasculaire (UF 04), Université de Paris, IRSL, Recherche clinique appliquée à l'hématologie, Paris, France
4. Department of Medicine, McGill University Health Center, Montreal, Canada
5. Division of Hematology/Oncology, University of Florida, Gainesville, Florida, USA
6. Harvard Medical School, Boston, Massachusetts, USA
7. Cardiovascular Medicine Division at the Brigham and Women's Hospital, Boston, Massachusetts, USA
8. Brigham and Womens Hospital and Dana-Farber Cancer Institute, Boston Massachusetts, USA