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.
Guse SE, Neuman MI, O'Brien M, Alexander ME, Berry M, Monuteaux MC, Fine AM.Guse SE, et al.Pediatrics. 2014 Nov;134(5):e1413-21. doi: 10.1542/peds.2013-3833.Pediatrics. 2014.PMID: 25332499
Yih WK, Lieu TA, Rêgo VH, O'Brien MA, Shay DK, Yokoe DS, Platt R.Yih WK, et al.BMC Public Health. 2003 Jun 11;3:20. doi: 10.1186/1471-2458-3-20.BMC Public Health. 2003.PMID: 12801426Free PMC article.