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. 2022 Jun 30;63(2):431–438. doi: 10.47162/RJME.63.2.14

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Image of highly infiltrated superficial periodontium with lymphocyte cells, where a large part of the cells are T-lymphocytes with CD45RO+ memory. Anti-CD45RO antibody immunomarking, ×200. CD45RO: Cluster of differentiation 45RO.