1. From the Department of Radiology, Division of Cardiothoracic Radiology (D.B., O.M.M., N.L.M., A.M.B.), Department of Medicine, Division of Respirology (R.G.N., R.D.L., C.B., J.R.S.), Department of Pathology (J.C.E.), and Department of Thoracic Surgery (J.Y.), Vancouver General Hospital, University of British Columbia, 899 W 12th Ave, Vancouver, BC, Canada V5Z 1L5; and British Columbia Lung Transplant Program, Vancouver, Canada (R.G.N., J.Y., R.D.L., C.B., J.R.S.).