1. Pneumococcal vaccines WHO position paper--2012;Wkly Epidemiol Rec,2012
2. Burden of disease caused by Streptococcus pneumoniae in children younger than 5 years: global estimates;O’Brien;Lancet,2009
3. Nuorti P, Rinta-Kokko H, Toropainen M, et al. Evidence of herd protection and serotype replacement in adults after universal 10-valent pneumococcal conjugate vaccination of infants in Finland. Presented at: International Symposium on Pneumococci and Pneumococcal Diseases (ISPPD); June 26-30 2016; Glasgow, Scotland.
4. Invasive pneumococcal diseases in children and adults before and after introduction of the 10-valent pneumococcal conjugate vaccine into the Austrian national immunization program;Richter;PLoS One,2019