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Stiggelbout M, Hopman-Rock M, Tak E, Lechner L, van Mechelen W.Stiggelbout M, et al.J Aging Phys Act. 2005 Oct;13(4):406-21.J Aging Phys Act. 2005.PMID: 16301753
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Kruisdijk FR, Hendriksen IJ, Tak EC, Beekman AT, Hopman-Rock M.Kruisdijk FR, et al. Among authors: tak ec.BMC Public Health. 2012 Jan 19;12:50. doi: 10.1186/1471-2458-12-50.BMC Public Health. 2012.PMID: 22260713Free PMC article.Clinical Trial.