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 David Hutton, PhD, MS Health policy and medical decision making Emily Treleaven, PhD, MPH Social and structural determinants of health and mortality Abram Wagner Disparities in vaccination, with a particular focus on vaccine hesitancy