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 + Timothy (Tim) Hofer, MD, MS Quality improvement and healthcare delivery Mark Norris, MD Pediatric and Adult Congenital Heart Disease Geoffrey Omuse, PhD, MBChB, MMed Diagnostics, cost effectiveness David (Dave) Ripin, PhD Prevention and treatment of infectious diseases