Affiliations

• ¹ Department of Pulmonary and Critical Care, Cleveland, OH. Electronic address: mazzonp@ccf.org.
• ² Department of Medicine, Medical University of South Carolina, Charleston, SC.
• ³ CHEST, Glenview, IL.
• ⁴ Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI.
• ⁵ VHA National Center for Health Promotion and Disease Prevention, Durham, NC.
• ⁶ Pulmonary Center, Boston University School of Medicine, Boston, MA; Center for Healthcare Organization & Implementation Research, Edith Nourse Rogers Memorial VA Hospital, Bedford, MA.
• ⁷ Department of Pulmonary and Critical Care, West Lost Angeles VA Healthcare Center, Los Angeles, CA.
• ⁸ Department of Surgery, Yale University, New Haven, CT.