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.
de Koning GA, Tio D, van den Hoek JA, van Klingeren B.de Koning GA, et al. Among authors: van den hoek ja, van klingeren b.Br J Vener Dis. 1983 Apr;59(2):100-2. doi: 10.1136/sti.59.2.100.Br J Vener Dis. 1983.PMID: 6299449Free PMC article.
Ansink-Schiper MC, van Embden JD, van Klingeren B, Woudstra R.Ansink-Schiper MC, et al. Among authors: van klingeren b, van embden jd.Lancet. 1982 Feb 20;1(8269):445. doi: 10.1016/s0140-6736(82)91640-3.Lancet. 1982.PMID: 6121106No abstract available.