1. Department of Epidemiology and Biostatistics; College of Public Health; University of South Florida; Tampa FL USA
2. Department of Cancer Epidemiology; Moffitt Cancer Center and Research Institute; Tampa FL USA
3. Department of Biostatistics; Moffitt Cancer Center and Research Institute; Tampa FL USA
4. Department of Performance Improvement; Moffitt Cancer Center and Research Institute; Tampa FL USA
5. Vanderbilt Institute for Global Health; Nashville TN USA
6. Department of Radiology & Oncology; School of Medicine; University of São Paulo; São Paulo Brazil
7. Centro de Referencia e Treinamento em DST/Aids; São Paulo Brazil
8. Department of Biochemistry; Chemistry Institute; University of São Paulo; São Paulo Brazil
9. Instituto Nacional de Salúd Publica; Cuernavaca Mexico
10. Instituto Mexicano del Seguro Social; Cuernavaca Mexico