1. 1Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
2. 2Regional Blood Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
3. 3State University of Campinas, Campinas, Brazil
4. 4Federal University of Minas Gerais, Belo Horizonte, Brazil
5. 5Amaral Carvalho Hospital, Jaú, Brazil
6. 6Federal University of Paraná, Curitiba, Brazil
7. 7Department of Internal Medicine, University of São Paulo Medical School, São Paulo, Brazil