1. WHO-UNICEF estimates of DTP3 coverage,2020
2. Global Routine Vaccination Coverage, 2018;Peck;MMWR Morb Mortal Wkly Rep,2019
3. Immunization coverage: Are we losing ground?;United Nations Children’s Fund,2020
4. A systems map of the economic considerations for vaccination: Application to hard-to-reach populations;Cox;Vaccine,2021
5. World Health Organization. Improving vaccination demand and addressing hesitancy. Geneva, Switzerland: World Health Organization; 2020.