1. Bill J. Wright ( ) is a senior research scientist with the Center for Outcomes Research and Education, Providence Health System, in Portland, Oregon.
2. Matthew J. Carlson is an associate professor of sociology at Portland State University, in Oregon.
3. Heidi Allen is a research scientist with the Center for Outcomes Research and Education, Providence Health System.
4. Alyssa L. Holmgren is director of the Oregon Health Research and Evaluation Collaborative, in Portland.
5. D. Leif Rustvold is a research analyst with the Center for Outcomes Research and Education, Providence Health System.