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Schoenmakers EC, van Tilburg TG, Fokkema T.Schoenmakers EC, et al. Among authors: fokkema t.Aging Ment Health. 2012;16(3):353-60. doi: 10.1080/13607863.2011.630373. Epub 2011 Nov 30.Aging Ment Health. 2012.PMID: 22129447Free article.
Djundeva M, Dykstra PA, Fokkema T.Djundeva M, et al. Among authors: fokkema t.J Gerontol B Psychol Sci Soc Sci. 2019 Oct 4;74(8):1406-1415. doi: 10.1093/geronb/gby119.J Gerontol B Psychol Sci Soc Sci. 2019.PMID: 30312447Free PMC article.
Kemppainen L, Kemppainen T, Fokkema T, Wrede S, Kouvonen A.Kemppainen L, et al. Among authors: fokkema t.Int J Environ Res Public Health. 2023 Jan 8;20(2):1117. doi: 10.3390/ijerph20021117.Int J Environ Res Public Health. 2023.PMID: 36673878Free PMC article.