Abstract
1 Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
2 Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD, USA
3 Proyecto Epidemiológico Guanacaste, Costa Rican Foundation for Health Sciences, San José, Costa Rica
4 Department of Pediatrics, Department of Epidemiology and Population Health, Department of Obstetrics, Gynecology and Woman's Health and Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA