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.
Bouwsma EVA, Huirne JAF, van de Ven PM, Vonk Noordegraaf A, Schaafsma FG, Schraffordt Koops SE, van Kesteren PJM, Brölmann HAM, Anema JR.Bouwsma EVA, et al. Among authors: schaafsma fg.BMJ Open. 2018 Jan 30;8(1):e017781. doi: 10.1136/bmjopen-2017-017781.BMJ Open. 2018.PMID: 29382673Free PMC article.Clinical Trial.
Suman A, Schaafsma FG, Elders PJ, van Tulder MW, Anema JR.Suman A, et al. Among authors: schaafsma fg.BMC Public Health. 2015 May 31;15:522. doi: 10.1186/s12889-015-1876-1.BMC Public Health. 2015.PMID: 26025259Free PMC article.Clinical Trial.
Schaafsma FG, Anema JR, van der Beek AJ.Schaafsma FG, et al.Best Pract Res Clin Rheumatol. 2015 Jun;29(3):483-94. doi: 10.1016/j.berh.2015.04.028. Epub 2015 May 31.Best Pract Res Clin Rheumatol. 2015.PMID: 26612243Review.