Laboratory-based surveillance of streptococcus pneumoniae invasive disease (IPD) in children: serotype distribution and estimation of vaccines coverage - Negrini, B. V. M.; Medeiros, M. I. C.; Brandileone, M. C.; Mussi-Pinhata, Marisa Márcia (International Symposium on Pneumococci and Pneumococcal Diseases, 2011)