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. 2020 Jul 31;10:12924. doi: 10.1038/s41598-020-69722-4

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Cell viability analysis using MTT. Cell were treated with varying concentrations (10, 15, 20 µM) of the (A) butanol, (B) hexane and (C) methanol extracts of Tulbaghia voilacea (TV) respectively. HeLa, ME-180, MDA-MBA-231, MCF-7 and MRC-5 cell lines were treated with the plant extracts for 24 h. Cell viability was determined in triplicate from three independent experiments by MTT assay. Data represented as mean ± SD, **p ˂ 0.10, *p ˂ 0.05.