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Dual immunofluorescence for S100 protein (a and d; green fluorescence) and CD34 (b and e; red fluorescence) in a single Ruffini's corpuscle (arrows). Glial cells occupy the core of the corpuscle and the capsule is of endoneurial origin (c and f). nf: nerve fibre. Objective: 63X/1.40 oil; pinhole: 1.37; XY resolution: 139.4 nm; and Z resolution: 235.8 nm
