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. 2013 Jul 9;86(2):341–356. doi: 10.1111/1574-6941.12165

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© 2013 The Authors. FEMS Microbiology Ecology published by John Wiley & Sons Ltd on behalf of the Federation of European Microbiological Societies

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Diagram showing the relative abundance of the bacterial diversity present on wall samples. (a) rosy discolored wall. (b) salt efflorescence. (c) wall with purple stains.