1. Meyers Primary Care Institute; Worcester MA USA
2. Department of Medicine; University of Massachusetts Medical School; Worcester MA USA
3. University of Georgia; Athens GA USA
4. Health Management and Policy; Georgia State University; Atlanta GA USA
5. Kaiser Permanente Georgia; Atlanta GA USA
6. Maine Medical Center Research Institute; Portland ME USA
7. Center for Outcomes Research and Evaluation; Maine Medical Center Research Institute; Portland ME USA
8. Kaiser Permanente Mid-Atlantic States; Rockville MD USA
9. University of Massachusetts Medical School; Worcester MA USA