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All original research papers published by Tropical Journal of Phytochemistry and Pharmaceutical Sciences are made freely and permanently accessible online immediately upon publication. Each article published in Tropical Journal Phytochemistry and Pharmaceutical Sciences is an Open Access articles that complies with the Creative Commons Attribution License under a Attribution-NonCommercial 4.0 International and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.