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.
Lund O, Lund OS, Gram G, Nielsen SD, Schønning K, Nielsen JO, Hansen JE, Mosekilde E.Lund O, et al. Among authors: nielsen sd, nielsen jo.Bull Math Biol. 1997 Jul;59(4):725-45. doi: 10.1007/BF02458427.Bull Math Biol. 1997.PMID: 9214851
Hansen JE, Gram GJ, Nielsen SD, Sørensen A, Jensen PB, Sehested M, Nielsen JO, Rørth M.Hansen JE, et al. Among authors: nielsen sd, nielsen jo.APMIS. 1997 Sep;105(9):723-9. doi: 10.1111/j.1699-0463.1997.tb05077.x.APMIS. 1997.PMID: 9350217