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.
Norder Grusell E, Dahlén G, Ruth M, Ny L, Quiding-Järbrink M, Bergquist H, Bove M.Norder Grusell E, et al. Among authors: bergquist h.Dis Esophagus. 2013 Jan;26(1):84-90. doi: 10.1111/j.1442-2050.2012.01328.x. Epub 2012 Mar 6.Dis Esophagus. 2013.PMID: 22394217