1. 1Department of Internal Medicine, Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
2. 2Division of Hematology and Hematologic Malignancies, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
3. 3Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington, VT
4. 4Department of Pathology & Laboratory Medicine, Larner College of Medicine at the University of Vermont, Burlington, VT