1. Department of Epidemiology and Biostatistics, College of Public Health; University of South Florida; Tampa Florida
2. Department of Family and Community Medicine; Baylor College of Medicine; Houston Texas
3. Department of Environmental Occupational Health, College of Public Health; University of South Florida; Tampa Florida
4. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology; University of South Florida, Morsani College of Medicine; Tampa Florida
5. Department of Community and Family Health, College of Public Health; University of South Florida; Tampa Florida