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Clinical Microbiology and Infection > 2010 > 16 > 9 > 1421-1426
Clinical Microbiology and Infection > 16 > 9 > 1421 - 1426
European Journal of Epidemiology > 2007 > 22 > 2 > 121-127
Clinical Microbiology and Infection > 2010 > 16 > 9 > 1421-1426
Clinical Microbiology and Infection > 16 > 9 > 1421 - 1426
European Journal of Epidemiology > 2007 > 22 > 2 > 121-127