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Hoeven TA, Fischer EA, Pahan D, Richardus JH.Hoeven TA, et al. Among authors: richardus jh.Epidemiol Infect. 2008 Dec;136(12):1624-7. doi: 10.1017/S0950268808000381. Epub 2008 Feb 13.Epidemiol Infect. 2008.PMID: 18272012Free PMC article.