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. 2022 May 20;22:143. doi: 10.1186/s12906-022-03619-9

Fig. 6.

Fig. 6

Comparison of licking time in acute and chronic phases of the formalin test after treatment with distilled water (D.W.: control group), blank gel, clove-NG, and cinnamon-NG. Each value represents mean ± SEM, *P < 0.05, **P < 0.01