| Affiliation: | 1. Department of Clinical Services, Marquette University School of Dentistry, Milwaukee, WI, USA;2. Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, IA, USA;3. Department of Preventive & Community Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, USA;4. Department of Pediatric Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, USA;5. Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA |
