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Flow cytometry analysis of surface markers of monocyte activation before and after RIC in individuals with/without brachial plexus block. A. Surface expression of CD11b on circulating CD14 monocytes. B. Surface expression of HLA-DR on circulating CD14 monocytes, which were similar at baseline in each individual between experiments (block versus control). P values are shown for post-hoc Tukey-Kramer testing (RIC/pre RIC versus LPS/saline control).
