1. UNICEF. Under-five mortality. 2018.
https://data.unicef.org/topic/child-survival/under-five-mortality/
. Accessed 6 Aug-2018.
2. Every child alive: The urgent need to end newborn deaths. United Nations Children’s Fund (UNICEF). 2018.
https://data.unicef.org/wp-content/uploads/2018/02/Every-Child-Alive-report_FINAL-1.pdf
. Accessed 12 June 2018.
3. Levels and Trends in Child Mortality. Estimates Developed by the UN Inter-agency Group for Child Mortality Estimation, United Nations Children’s Fund, New York, United Nations Inter-agency Group for Child Mortality Estimation (UN IGME). 2017.
https://www.childmortality.org/files_v21/download/IGME%20report%202017%20child%20mortality%20final.pdf
. Accessed 12 June 2018.
4. Centers for Disease Control and Prevention. Epidemiology and Prevention of Vaccine-Preventable Diseases. Hamborsky J, Kroger A, Wolfe S, eds. 13th ed. Supplement. Washington D.C. Public Health Foundation, 2017. Available at.
https://www.cdc.gov/vaccines/pubs/pinkbook/downloads/supplement.pdf
. Accessed July 2018.
5. Moraga-Llop FA, Campins-Marti M. Pertussis vaccine. Reemergence of the disease and new vaccination strategies. Enferm Infecc Microbiol Clin. 2015;33:190–6.