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.
Vahratian A, Siega-Riz AM, Savitz DA, Zhang J.Vahratian A, et al. Among authors: savitz da.Ann Epidemiol. 2005 Aug;15(7):467-74. doi: 10.1016/j.annepidem.2005.02.005.Ann Epidemiol. 2005.PMID: 15921926
Savitz DA, Zhang J, Schwingl P, John EM.Savitz DA, et al.Teratology. 1992 Nov;46(5):465-71. doi: 10.1002/tera.1420460511.Teratology. 1992.PMID: 1462251
Savitz DA, Zhang J.Savitz DA, et al.Am J Public Health. 1992 May;82(5):675-9. doi: 10.2105/ajph.82.5.675.Am J Public Health. 1992.PMID: 1566945Free PMC article.