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© 2011 by School of Pharmacy, Shaheed Beheshti University of Medical Sciences and Health Services
This is an Open Access article distributed under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 3.
EI-Mass fragmentation pattern of oleanolic acid