1. 1Department of Internal MedicineHematology and Oncology, University of Sao Paulo Faculty of Medicine of Ribeirao Preto, Ribeirao Preto, São Paulo, Brazil
2. 2Department of Surgery and AnatomyHematology and Oncology, University of Sao Paulo Faculty of Medicine of Ribeirao Preto, Ribeirao Preto, São Paulo, Brazil
3. 3Department of RadiologyHematology and Oncology, University of Sao Paulo Faculty of Medicine of Ribeirao Preto, Ribeirao Preto, São Paulo, Brazil