1. Department of Epidemiology and Biostatistics, College of Public Health, University of South Florida, Tampa, FL
2. Medical Service, James A. Haley VA Hospital, Tampa, FL
3. Infectious and Cancer Biology Group, International Agency for Research on Cancer (IARC), Lyon, France
4. Laboratory Service, James A. Haley VA Hospital, Tampa, FL
5. Department of Pathology and Cell Biology, University of South Florida, Tampa, FL
6. Division of Pulmonary, Critical Care & Sleep Medicine, University of South Florida, Tampa, FL