1. Klein Buendel, Inc, Golden, CO, USA. dbuller@kleinbuendel.com
2. Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
3. Oregon Research Institute, Eugene, OR, USA
4. Department of Family Medicine, University of Washington, Seattle, WA, USA
5. Cherry Creek Schools, Centennial, CO, USA
6. Alere Wellbeing, Inc, Seattle, WA, USA