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.
van der Hoek EW, Yap SH, Strijk S, Nagengast FM.van der Hoek EW, et al. Among authors: strijk s.Ned Tijdschr Geneeskd. 1981 Jun 27;125(26):1027-31.Ned Tijdschr Geneeskd. 1981.PMID: 7254385Dutch.No abstract available.