1. University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
2. New Hampshire Department of Health and Human Services, Concord, New Hampshire, USA
3. Council of State and Territorial Epidemiologists, Atlanta, Georgia, USAMassachusetts Department of Public Health, Boston, Massachusetts, USA
4. Council of State and Territorial Epidemiologists, Atlanta, Georgia, USA
5. Centers for Disease Control and Prevention, Atlanta, Georgia, USA