1. Steven C. Hill () is a senior economist in the Division of Research and Modeling, Center for Financing, Access, and Cost Trends, Agency for Healthcare Research and Quality (AHRQ), in Rockville, Maryland.
2. G. Edward Miller is deputy director of the Division of Research and Modeling, Center for Financing, Access, and Cost Trends, AHRQ.
3. Yao Ding is a senior economist in the Center for Financing, Access, and Cost Trends, AHRQ.