1. Epidemiology Program; College of Public Health and Human Sciences; Oregon State University; Corvallis OR USA
2. Department of Anthropology; Oregon State University; Corvallis OR USA
3. College of Agricultural and Environmental Sciences; University of California; Davis CA USA
4. College of Nursing; University of New Mexico; Albuquerque NM USA
5. School of Medicine; University of New Mexico; Albuquerque NM USA