Natasha Bagdasarian, MD, Department of Internal Medicine, Divisions of Infectious Diseases, University of Michigan Health System, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI, USA.
Preeti N. Malani, MD, Department of Internal Medicine, Divisions of Infectious Diseases and Geriatric Medicine, University of Michigan Health System, Veterans Affairs Ann Arbor Healthcare System; Geriatric Research Education and Clinical Center, Ann Arbor, MI, USA.

Jill M. Watanabe, MD, MPH, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA.
Christina M. Surawicz, MD, FACG, Department of Medicine and Division of Gastroenterology, University of Washington School of Medicine, Seattle, WA, USA.