*Inova Heart and Vascular Institute, Falls Church, VA
†Division of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX
‡Division of Mathematics and Statistics, University of Vermont
§Division of Pulmonary and Critical Care, University of Vermont Medical Center, Burlington, VT
Disclosure: There is no conflict of interest or other disclosures.
Reprints: C. Matthew Kinsey, MD, MPH, Division of Pulmonary and Critical Care, University of Vermont Medical Center, 89 Beaumont Avenue, Given D208, Burlington, VT 05401 (e-mail: firstname.lastname@example.org).