1. James D. Ralston ( ) is an associate investigator with the Group Health Research Institute, Group Health Cooperative, in Seattle, Washington.
2. Katie Coleman is a research associate with the Group Health Research Institute.
3. Robert J. Reid is an associate investigator with the Group Health Research Institute.
4. Matthew R. Handley is an associate medical director with Group Health Permanente Quality and Informatics in Seattle, Washington.
5. Eric B. Larson is executive director of the Group Health Research Institute.