Access to COVID-19 Vaccines in High-, Middle-, and Low-Income Countries Hosting Clinical Trials.

Ramachandran, Reshma; Ross, Joseph S; Miller, Jennifer E · JAMA Netw Open · 2021

cross_sectional · Level IV

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Abstract

This cross-sectional study examines authorization and delivery of COVID-19 vaccines recommended by the World Health Organization in the countries where they were tested.

Medical subject headings