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. 2022 Jan 20;83(2):103–108. doi: 10.1016/j.ando.2021.12.004

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Fig. 1 — Coronavirus structure. Reproduced from an article in Médecine/Sciences by Juckel et al., 2020 [3]. S: spike protein; M: membrane protein; E: envelope protein; N: nucleocapsid protein associated with genomic RNA.