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.
Gray JE, Richardson DK, McCormick MC, Goldmann DA.Gray JE, et al. Among authors: mccormick mc.Pediatrics. 1995 Feb;95(2):225-30.Pediatrics. 1995.PMID: 7838640