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The Effectiveness of Pfizer-BioNTech and Oxford-AstraZeneca Vaccines to Prevent Severe COVID-19 in Costa Rica: Nationwide, Ecological Study of Hospitalization Prevalence
Author(s) -
Luis Rosero-Bixby
Publication year - 2022
Publication title -
jmir public health and surveillance
Language(s) - English
Resource type - Journals
ISSN - 2369-2960
DOI - 10.2196/35054
Subject(s) - vaccination , medicine , pediatrics , observational study , demography , immunology , sociology

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