Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: eick.steph@gmail.com. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: aperrydale@gmail.com. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: bmckay81@gmail.com. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: crl99301@uga.edu. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: ebell@uga.edu. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: jcordero@uga.edu. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, University of Georgia Health Sciences Campus, Athens, GA. Electronic address: Michael.welton@gmail.com.