1. Department of Rehabilitation and Health ServicesUniversity of North Texas Denton Texas
2. Department of EpidemiologyBrown University Providence Rhode Island
3. Department of EpidemiologyUniversity of Louisville Louisville Kentucky
4. School of NursingUniversity of Kansas Medical Center Kansas City Kansas
5. Department of PediatricsUniversity of Louisville Louisville Kentucky
6. Department of Biomedical InformaticsThe Ohio State University Columbus Ohio
7. Department of Geography and GeosciencesUniversity of Louisville Louisville Kentucky
8. Department of Environmental Health SciencesUniversity of Alabama at Birmingham Birmingham Alabama