Placebo control group in COVID-19 vaccine trials: context and timing matters.

Eur J Clin Pharmacol

Epidemiology Unit, Health Research Institute-Fundación Jiménez Díaz University Hospital, Universidad Autónoma de Madrid, Madrid, Spain.

Published: March 2022

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8626740PMC
http://dx.doi.org/10.1007/s00228-021-03259-xDOI Listing

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