Brandão, AP, et al. “INVESTIGATION OF SEROTYPE 6C INVASIVE PNEUMOCOCCAL DISEASE (IPD) THROUGHOUT BRAZIL, 2003-2008”. Revista Do Instituto Adolfo Lutz, vol. 68, nº Suplemento 1, outubro de 2009, p. BM-112, https://periodicos.saude.sp.gov.br/RIAL/article/view/39705.