1. Russel F, Sanderson C, Temple B, Mulholand K (2011) Global review of the distribution of pneumococcal disease by age and region. World Health Organization, Geneva, Switzerland.
http://www.who.int/immunization/sage/6_Russel_review_age_specific_epidemiology_PCV_schedules_session_novl 1.pdf
. 2011.Nov
2. Drijkoningen JJ, Rhode GG (2014) Pneumococcal infection in adults: burden of disease. Clin Microbiol Infect 20:45–51
3. Advisory Committee on Immunization Practices (2000) Preventing pneumococcal disease among infants and young children. Recommendations of the Advisory Committee on Immunization Practices (ACIP). MMWR Recomm Rep 49(RR-9):1–35
4. Butler JC, Schuchat A (1999) Epidemiology of pneumococcal infections in the elderly. Drugs Aging 15(Suppl 1):11–19
5. Walker CL, Rudan I, Liu L, Nair H, Theodoratou E, Bhutta ZA et al (2013) Global burden of childhood pneumonia and diarrhoea. Lancet 381(9875):1405–1416