1 Department of Medicine, University of Louisville Health Sciences Center and Robley Rex VA Medical Center, Louisville, Kentucky; Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, Georgia. Electronic address: j.roman@louisville.edu.
2 Department of Medicine, University of Louisville Health Sciences Center and Robley Rex VA Medical Center, Louisville, Kentucky; Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, Georgia. Electronic address: skomaku@emory.edu.