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. 2021 Mar 8;4:306. doi: 10.1038/s42003-021-01809-8

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© The Author(s) 2021

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Fig. 2 — a Bacteria embedded on a single layer of agarose. b Agarose sandwich approach to flat embedding of mycobacteria. M. bovis BCG was grown in the presence or absence of 0.05% Tween 80. c Bacteria embedded on carbon-coated coverslips. See also Supplementary Fig. 3.