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Gritzfeld, J F., A J H. Cremers, G. Ferwerda, D M. Ferreira, A. Kadioglu, P W M. Hermans, and S B. Gordon. Density and Duration of Experimental Human Pneumococcal Carriage. Blackwell Publishing Ltd, 2014.

Gritzfeld, J F., et al. Density and Duration of Experimental Human Pneumococcal Carriage. Blackwell Publishing Ltd, 2014.