1. Jonathan M. Keller, MD, is a Fellow, Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Washington; Dru Claar, MD, is Clinical Assistant Professor, Division of Pulmonary and Critical Care, Department of Internal Medicine, University of Michigan Medical School. and Ann Arbor Veteran Affairs Health Center; Juliana Carvalho Ferreira, MD, PhD, is Associate