1 Chris Delcher, Alexander C. Wagenaar, and Mildred M. Maldonado-Molina are with Department of Health Outcomes and Policy & Institute for Child Health Policy, University of Florida College of Medicine, Gainesville. Bruce A. Goldberger and Yanning Wang are with Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville. Robert L. Cook is with Department of Epidemiology, University of Florida College of Public Health and Health Professions & College of Medicine, Gainesville.