Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study
BMJ
.
2021 Sep 6:374:n2091.
doi: 10.1136/bmj.n2091.
PMID:
34489240
PMCID:
PMC8419709
DOI:
10.1136/bmj.n2091
No abstract available
Publication types
Published Erratum