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. 2011 Sep 7;2012:452431. doi: 10.1155/2012/452431

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Copyright © 2012 Nedeljko T. Manojlovic et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Scheme 1 — Structures of the identified compounds.