1. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan;
2. Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan;
3. Department of Pulmonary and Critical Care Medicine, Mount Sinai School of Medicine, Elmhurst, NY, USA;
4. Division of Pulmonary, Allergy, Critical Care and Sleep Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA;
5. Atlanta Veterans Affairs Medical Center, Decatur, GA, USA;
6. American Thoracic Society, New York, NY, USA;
7. Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA