An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
1 Division of Thoracic Surgery and Interventional Pulmonology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
2 Department of Interventional Pulmonary Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco (UCSF) San Francisco, CA.
1 Division of Thoracic Surgery and Interventional Pulmonology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
2 Department of Interventional Pulmonary Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco (UCSF) San Francisco, CA.