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.
Zwaan E, Meij-de Vries A, van Deutekom AW, van der Steeg AF, Sleeboom C, Heij HA.Zwaan E, et al.Ned Tijdschr Geneeskd. 2013;157(3):A5633.Ned Tijdschr Geneeskd. 2013.PMID: 23328027Dutch.
VAN DE GEER JP, ZWAAN EJ.VAN DE GEER JP, et al. Among authors: zwaan ej.Am J Psychol. 1964 Dec;77:563-75.Am J Psychol. 1964.PMID: 14251964No abstract available.