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.
Major CA, de Veciana M, Lewis DF, Morgan MA.Major CA, et al. Among authors: lewis df.Am J Obstet Gynecol. 1995 Feb;172(2 Pt 1):672-6. doi: 10.1016/0002-9378(95)90591-x.Am J Obstet Gynecol. 1995.PMID: 7856704
Toohey JS, Lewis DF, Harding JA, Crade M, Asrat T, Major CA, Garite TJ, Porto M.Toohey JS, et al. Among authors: lewis df.Am J Obstet Gynecol. 1991 Oct;165(4 Pt 1):1060-2. doi: 10.1016/0002-9378(91)90470-c.Am J Obstet Gynecol. 1991.PMID: 1951513
Harding JA, Jackson DM, Lewis DF, Major CA, Nageotte MP, Asrat T.Harding JA, et al. Among authors: lewis df.Am J Obstet Gynecol. 1991 Oct;165(4 Pt 1):1088-94. doi: 10.1016/0002-9378(91)90477-9.Am J Obstet Gynecol. 1991.PMID: 1951520
Harding JA, Lewis DF, Major CA, Crade M, Patel J, Nageotte MP.Harding JA, et al. Among authors: lewis df.Am J Obstet Gynecol. 1990 Nov;163(5 Pt 1):1566-8. doi: 10.1016/0002-9378(90)90628-k.Am J Obstet Gynecol. 1990.PMID: 2240107