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.
Gerrits WB, van Aken WG, van der Meer J, Vreeken J.Gerrits WB, et al. Among authors: vreeken j.Acta Med Scand. 1974 May;195(5):425-30. doi: 10.1111/j.0954-6820.1974.tb08164.x.Acta Med Scand. 1974.PMID: 4598060No abstract available.
Vreeken J, Van der Meer J, Fedder G, Van Aken WG, Goote TM.Vreeken J, et al.Neth J Med. 1974;17(3):121-30.Neth J Med. 1974.PMID: 4846863No abstract available.