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. 2020 Jun 3;13:1323–1333. doi: 10.2147/JPR.S239831

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© 2020 Tariba Knežević et al.

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Histopathological analysis of the masseter muscle (MM) tissue (hematoxylin and eosin staining, 20x). (A) Complete Freund’s adjuvant (CFA)-injected MM presents signs of inflammation. (B) MM contralateral to CFA injection shows no signs of inflammation. (C) MM of control rats shows no signs of inflammation.

Abbreviations: CFA, complete Freund’s adjuvant; MM, masseter muscle.