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.
Vissink A, Spijkervet FK, Kalk WW, van Nieuw Amerongen A, Bootsma H, Kallenberg CG.Vissink A, et al. Among authors: bootsma h.Ned Tijdschr Tandheelkd. 1997 Dec;104(12):458-62.Ned Tijdschr Tandheelkd. 1997.PMID: 11923921Review.Dutch.
Pijpe J, Kalk WW, Bootsma H, van der Wal JE, van Imhoff GW, Vissink A.Pijpe J, et al. Among authors: bootsma h.Ned Tijdschr Geneeskd. 2003 Nov 22;147(47):2309-15.Ned Tijdschr Geneeskd. 2003.PMID: 14679981Dutch.