

Gary L. Schaer, MD, is professor of medicine and director, cardiology research and strategic development at at Rush University Medical Center in Chicago, Illinois.
COVID-19: Vaccine and booster updates, testing information, safety measures, updated policies, ways to help and more.
Gary L. Schaer, MD, is professor of medicine and director, cardiology research and strategic development at at Rush
Gary L. Schaer, MD, is professor of medicine and director, cardiology research and strategic development at at Rush University Medical Center in Chicago, Illinois.