Serogroup-specific epidemiology of Streptococcus pneumoniae: associations with age, sex, and geography in 7,000 episodes of invasive disease. 由 Scott, J, Hall, A, Dagan, R, Dixon, J, Eykyn, S, Fenoll, A, Hortal, M, Jetté, L, Jorgensen, J, Lamothe, F, Latorre, C, Macfarlane, J, Shlaes, D, Smart, L, Taunay, A