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. 2021 Mar 30;333:511–520. doi: 10.1016/j.jconrel.2021.03.043

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Fig. 1 — Timeline of the development of three most advanced mRNA vaccines against COVID-19; BNT162b2 (Green dots), mRNA-1273 (Blue) and CVnCoV (Orange). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)