^*Division of Pulmonary, Critical Care, and Sleep Medicine, Creighton University Medical Center, Omaha, NE

^†Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Medical Center, Columbus, OH

^‡Division of Allergy, Pulmonary, and Critical Care Medicine

^§Department of Thoracic Surgery, Vanderbilt University Medical Center

^∥Department of Thoracic Surgery

^¶Department of Medicine, Tennessee Valley Healthcare System, Nashville, TN

An early version of this work was presented as an abstract/poster at ATS, May 16, 2016. Am J Respir Crit Care Med 193;2016:A3385.

C.A.L., J.K.P., F.M., O.B.R., Z.D., R.J.L., E.S.L., and E.L.G.: study concept and design. C.A.L., J.K.P., and R.J.L.: acquisition of data. C.A.L., J.K.P., F.M., Z.D., and R.J.L.: drafting of the manuscript.

Disclosure: There is no conflict of interest or other disclosures.

Correspondence: Robert J. Lentz, MD, Vanderbilt University Medical Center, Division of Allergy, Pulmonary & Critical Care, 1161 21st Avenue South, T-1218 MCN, Nashville, TN 37232-2650 (e-mail: [email protected]).