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.
Mullins E, Hudak ML, Banerjee J, Getzlaff T, Townson J, Barnette K, Playle R, Perry A, Bourne T, Lees CC; PAN-COVID investigators and the National Perinatal COVID-19 Registry Study Group.Mullins E, et al. Among authors: banerjee j.Ultrasound Obstet Gynecol. 2021 Apr;57(4):573-581. doi: 10.1002/uog.23619.Ultrasound Obstet Gynecol. 2021.PMID: 33620113Free PMC article.