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Greenfield R, Busink E, Wong CP, Riboli-Sasco E, Greenfield G, Majeed A, Car J, Wark PA.Greenfield R, et al. Among authors: busink e.BMC Public Health. 2016 Jul 30;16:677. doi: 10.1186/s12889-016-3323-3.BMC Public Health. 2016.PMID: 27475984Free PMC article.