1. Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts;
2. Program Design and Evaluation Services, Multnomah County Health Department and Oregon Public Health Division, Portland, Oregon;
3. Department of Community and Behavioral Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado; and
4. College of Nursing, Washington State University, Spokane, Washington