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.
Elfeddali I, Bolman C, Candel MJ, Wiers RW, de Vries H.Elfeddali I, et al.J Med Internet Res. 2012 Aug 20;14(4):e109. doi: 10.2196/jmir.2057.J Med Internet Res. 2012.PMID: 22903145Free PMC article.Clinical Trial.
van Mourik DA, Candel MJJM, Nagelhout GE, Willemsen MC, Fong GT, Hummel K, van den Putte B, de Vries H.van Mourik DA, et al. Among authors: candel mjjm.BMC Public Health. 2018 Jun 15;18(1):740. doi: 10.1186/s12889-018-5666-4.BMC Public Health. 2018.PMID: 29902984Free PMC article.
van Mourik DA, Candel MJJM, Nagelhout GE, Willemsen MC, Yong HH, van den Putte B, Fong GT, de Vries H.van Mourik DA, et al. Among authors: candel mjjm.Int J Environ Res Public Health. 2019 Nov 2;16(21):4260. doi: 10.3390/ijerph16214260.Int J Environ Res Public Health. 2019.PMID: 31684033Free PMC article.