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.
Yang W, Carmichael SL, Roberts EM, Kegley SE, Padula AM, English PB, Shaw GM.Yang W, et al. Among authors: padula am.Am J Epidemiol. 2014 Mar 15;179(6):740-8. doi: 10.1093/aje/kwt324. Epub 2014 Feb 18.Am J Epidemiol. 2014.PMID: 24553680Free PMC article.
Shaw GM, Yang W, Roberts E, Kegley SE, Padula A, English PB, Carmichael SL.Shaw GM, et al.Birth Defects Res A Clin Mol Teratol. 2014 Sep;100(9):686-94. doi: 10.1002/bdra.23263. Epub 2014 Jun 7.Birth Defects Res A Clin Mol Teratol. 2014.PMID: 24910073Free PMC article.