1. Thomas M. Selden ( ) is director of the Division of Research and Modeling, Center for Financing, Access, and Cost Trends, at the Agency for Healthcare Research and Quality (AHRQ), in Rockville, Maryland.
2. Zeynal Karaca is a senior economist in the Division of Markets and Economic Research, Center for Delivery, Organization, and Markets, at AHRQ.
3. Patricia Keenan is a senior researcher in the Office of the Director at AHRQ.
4. Chapin White is a senior policy researcher at the RAND Corporation in Arlington, Virginia.
5. Richard Kronick is director of AHRQ.