1. Center for Immunization and Infection Research in Cancer H. Lee Moffitt Cancer Center and Research Institute Tampa Florida USA
2. Department of Cancer Epidemiology H. Lee Moffitt Cancer Center and Research Institute Tampa Florida USA
3. Biostatistics and Bioinformatics Shared Resource H. Lee Moffitt Cancer and Research Institute Tampa Florida USA
4. Instituto do Cancer do Estado de São Paulo São Paulo Brazil
5. Centro de Referencia e Treinamento em DST/Aids São Paulo Brazil
6. Center for Population Health Research National Institute of Public Health Cuernavaca Morelos Mexico
7. Department of Radiology and Oncology Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil