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.
Oyelese KO, Black RS, Lees CC, Campbell S.Oyelese KO, et al. Among authors: black rs.Aust N Z J Obstet Gynaecol. 1998 Nov;38(4):391-5. doi: 10.1111/j.1479-828x.1998.tb03094.x.Aust N Z J Obstet Gynaecol. 1998.PMID: 9890216
Lees CC, Lojacono A, Thompson C, Danti L, Black RS, Tanzi P, White IR, Campbell S.Lees CC, et al. Among authors: black rs.Obstet Gynecol. 1999 Sep;94(3):403-8. doi: 10.1016/s0029-7844(99)00296-3.Obstet Gynecol. 1999.PMID: 10472868Clinical Trial.
Veglia M, Cavallaro A, Papageorghiou A, Black R, Impey L.Veglia M, et al. Among authors: black r.Ultrasound Obstet Gynecol. 2018 Jul;52(1):66-71. doi: 10.1002/uog.17544.Ultrasound Obstet Gynecol. 2018.PMID: 28600829Free article.
Collins SL, Grant D, Black RS, Vellayan M, Impey L.Collins SL, et al. Among authors: black rs.Placenta. 2011 Oct;32(10):793-5. doi: 10.1016/j.placenta.2011.07.032. Epub 2011 Aug 12.Placenta. 2011.PMID: 21839509