1. Division of Hospital Medicine, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, United States
2. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, United States
3. Department of Thoracic Medicine and Surgery, Temple University, Philadelphia, Pennsylvania, United States
4. Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, United States
5. Division of Cardiology, Department of Medicine, The Ohio State University, Columbus, Ohio, United States