Pneumococcal genetic variability in age-dependent bacterial carriage за авторством Kremer, PHC, Ferwerda, B, Bootsma, HJ, Rots, NY, Wijmenga-Monsuur, AJ, Sanders, EAM, Trzciński, K, Wyllie, AL, Turner, P, van der Ende, A, Brouwer, MC, Bentley, SD, van de Beek, D, Lees, J