1. Center of Studies on Health and Society, El Colegio de Sonora, Hermosillo, Sonora, México
2. School of Geography, Development & Environment, University of Arizona, Tucson, Arizona
3. Udall Center for Studies in Public Policy, University of Arizona, Tucson, Arizona
4. Center of Development Studies, El Colegio de Sonora, Hermosillo, Sonora, México