Atul C. Mehta, MD, FACP, FCCPProfessor of Medicine, Lerner College of MedicineBuoncore Family Endowed Chair in Lung Transplantation Staff, Department of Pulmonary MedicineRespiratory Institute, Cleveland ClinicCleveland, OH, USAandSenior EditorJournal of Bronchology& Interventional PulmonologyPrasoon Jain, MBBS, MD, FCCPPulmonary and Critical CareLouis A Johnson VA Medical CenterClarksburg, WV, USA Thomas R. Gildea, MD, MS, FCCP, FACPPulmonary, Allergy, Critical Care Medicine and TransplantCenterRespiratory InstituteCleveland ClinicCleveland, OH, USA