Access to COVID-19 Vaccines in High-, Middle-, and Low-Income Countries Hosting Clinical Trials
Ramachandran R, Ross JS, Miller JE. Access to COVID-19 Vaccines in High-, Middle-, and Low-Income Countries Hosting Clinical Trials. JAMA Network Open 2021, 4: e2134233. PMID: 34792596, PMCID: PMC8603077, DOI: 10.1001/jamanetworkopen.2021.34233.Peer-Reviewed Original ResearchConceptsCOVID-19 vaccineCross-sectional studyWorld Health OrganizationClinical trialsLow-income countriesHealth OrganizationVaccineTrials