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 Joseph Mathew, PhD, MD Childhood respiratory diseases and evidence-based healthcare Payal Patel, MD, MPH Hospital-acquired infection control, antimicrobial stewardship, antimicrobial resistance, and hospital epidemiology David (Dave) Ripin, PhD Prevention and treatment of infectious diseases