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. 2017 Apr 3;7:108. doi: 10.3389/fcimb.2017.00108

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Copyright © 2017 Rumbo-Feal, Pérez, Ramelot, Álvarez-Fraga, Vallejo, Beceiro, Ohneck, Arivett, Merino, Fiester, Kennedy, Actis, Bou and Poza.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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SEM analysis of bacterial biofilms. Biofilms formed by 17978 (micrographs A and B) and Δ0114 (micrographs C and D) cells at the liquid-air interface. Micrographs A and C were recorded at a 5,000x magnification, while micrographs B and D were collected at a 10,000x magnification. White bars: 4 μm for A,C; 2 μm for B,D.