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 From Weill Cornell Medical College, New York (L.J.A.); Yale University School of Medicine, New Haven, CT (A.M.J.); and the University of North Carolina School of Medicine, Chapel Hill (S.M.).
1 From Weill Cornell Medical College, New York (L.J.A.); Yale University School of Medicine, New Haven, CT (A.M.J.); and the University of North Carolina School of Medicine, Chapel Hill (S.M.).