1. Department of Family Medicine, University of Washington, Box 354696, Seattle, WA 98195, USA
2. Department of Global Health, University of Washington, Box 357965, Seattle, WA 98195, USA
3. Department of Medicine, University of Washington, Box 356420, Seattle, WA 98195, USA
4. Division of Cardiology, University of Washington, Seattle, WA 98195, USA
5. Department of Community Medicine, Kathmandu University School of Medical Sciences, Dhulikhel, Nepal