The impact of supplementary immunization activities on routine vaccination coverage: An instrumental variable analysis in five low-income countries.

Autor: Chakrabarti, Averi1 averic@live.unc.edu, Grépin, Karen A.2, Helleringer, Stéphane3
Zdroj: PLoS ONE. 2/14/2019, Vol. 14 Issue 2, p1-11. 11p.
Databáze: Academic Search Ultimate
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