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. 2022 Apr 1;35(2):140–151. doi: 10.3344/kjp.2022.35.2.140

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© The Korean Pain Society, 2022

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 13 — Significance of cytotoxic effect of OVA essential oil. (A) The essential oil added after cell attachment. (B) The essential oil added before cell attachment (P < 0.05). The data represent mean ± standard error of mean. OVA: Origanum vulgare of the Armenian highlands, ns: not significant. ***P < 0.0005.