Covid-19: Where are we on vaccines and variants?
BMJ 2021; 372 doi: https://doi.org/10.1136/bmj.n597 (Published 02 March 2021)
Cite this as: BMJ 2021;372:n597
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The BMJ is a weekly peer-reviewed medical trade journal, published by the trade union the British Medical Association. The BMJ has editorial freedom from the BMA. It is one of the world's oldest general medical journals. Wikipedia