1. Department of Epidemiology and Biostatistics, Indiana University School of Public Health-Bloomington, IN, USA
2. Department of Community Health & Prevention, Drexel University School of Public Health, Philadelphia, PA, USA
3. School of Nursing, Ball State University, Muncie, IN, USA
4. Department of Pediatrics & Center for HPV Research, Indiana University School of Medicine, Indianapolis, IN, USA
5. Division of Infectious Diseases, Department of Medicine, University of Alabama-Birmingham, AL, USA