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1 From the Department of Radiology (H.H.) and Pulmonary and Critical Care Division (G.M.H.), Brigham and Women's Hospital and Harvard Medical School, 75 Francis St, Boston, MA 02215; and Department of Radiology, National Jewish Medical and Research Center, Denver, Colo (D.A.L.).
1 From the Department of Radiology (H.H.) and Pulmonary and Critical Care Division (G.M.H.), Brigham and Women's Hospital and Harvard Medical School, 75 Francis St, Boston, MA 02215; and Department of Radiology, National Jewish Medical and Research Center, Denver, Colo (D.A.L.).