CGHE members span the University of Michigan and the globe, including faculty experts, research collaborators, scholars, and community partners. Search for Members with Keywords, Sponsors, Locations, or Categories + David Guenther, JD Social enterprises, maternal health, rural communities Gary Harper, PhD, MPH, MS Mental health promotion and HIV prevention Elisa Maffioli, PhD, MA, MS Healthcare access and delivery in developing countries David (Dave) Ripin, PhD Prevention and treatment of infectious diseases Hang Yu, PhD, MA Development economics, health impact analysis