1. Department of Human Ecology; Graduate School of Medicine; The University of Tokyo; Tokyo 113-0033 Japan
2. Department of Anthropology; University of Washington; Seattle WA 98195
3. Environment and Public Health Organization (ENPHO); Kathmandu Nepal
4. College of Social Sciences, Ritsumeikan University; Kyoto 603-8577 Japan
5. Research Institute for Humanity and Nature; Kyoto 603-8047 Japan
6. Nepal Development Research Institute (NDRI); Kathmandu Nepal