1. School of Public Policy, Georgia Institute of Technology, Atlanta, GA, USA
2. University of Delaware, Newark, DE, USA
3. Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
4. School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA
5. Private Practice, Hanover, NH, USA
6. South Atlantic Region, National Dental Practice-Based Research Network, Gainesville, FL, USA
7. Southwest Region, National Dental Practice-Based Research Network, San Antonio, TX, USA