1. Department of Learning Health Sciences, University of Michigan Medical School , Ann Arbor, MI 48109, United States
2. Division of Health Policy & Management, University of Minnesota School of Public Health , Minneapolis, MN 55455, United States
3. Galter Health Sciences Library, Northwestern University Feinberg School of Medicine , Chicago, IL 60611, United States
4. Department of Epidemiology, University of Michigan School of Public Health , Ann Arbor, MI 48109, United States