1. Department of Radiology and Oncology, Medical School, University of Sao Paulo, São Paulo, São Paulo, Brazil
2. Laboratory of Molecular Biology, Heliopolis Hospital, São Paulo, São Paulo, Brazil
3. J.G. Brown Cancer Center, University of Louisville, Louisville, KY, USA
4. Department of Biochemistry and Molecular Genetics, University of Louisville, Louisville, KY, USA
5. Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
6. Deparment of Medicine, University of Louisville, Louisville, KY, USA