1. Alaska Siberia Medical Research Program, University of Alaska Seward
2. Institute for Circumpolar Health Studies, University of Alaska Anchorage
3. Alaska Native Health Service Anchorage, Alaska
4. Institute of Internal Medicine, Siberian Branch, Russian Academy of Medical Sciences Novosibirsk, Russia
5. Center for American Indian Health Research, University of Oklahoma Health Sciences Center Oklahoma City, Oklahoma
6. Medlantic Research Institute Washington, DC