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Andoh-Adjei FX, Boudewijns B, Nsiah-Boateng E, Asante FA, van der Velden K, Spaan E.Andoh-Adjei FX, et al. Among authors: van der velden k.Health Econ Rev. 2018 Aug 27;8(1):17. doi: 10.1186/s13561-018-0203-9.Health Econ Rev. 2018.PMID: 30151701Free PMC article.
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Ruijs WL, Hautvast JL, van der Velden K, de Vos S, Knippenberg H, Hulscher ME.Ruijs WL, et al. Among authors: van der velden k.BMC Public Health. 2011 Feb 14;11:102. doi: 10.1186/1471-2458-11-102.BMC Public Health. 2011.PMID: 21320348Free PMC article.