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Missed norovirus infections in relation to bacterial infections in stool samples of patients (n = 1,203) sent for bacteriological culture from December 2008 to July 2009. Clos., Clostridium difficile; Camp., Campylobacter spp.; Salm., Salmonella spp.; Shig., Shigella spp.; Yers., Yersinia spp.
