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.
Kibiki GS, Drenth JP, Nagengast FM.Kibiki GS, et al. Among authors: drenth jp.East Afr Med J. 2004 Sep;81(9):480-5.East Afr Med J. 2004.PMID: 15626059Review.
van Bokhoven MM, Drenth JP, Nagengast FM.van Bokhoven MM, et al. Among authors: drenth jp.Ned Tijdschr Geneeskd. 2005 Jul 9;149(28):1584-7.Ned Tijdschr Geneeskd. 2005.PMID: 16038164Dutch.