Figure 5.

Representative images showing immunohistochemical localization of RANKL in the human disc. Immunohistochemical localization of RANKL (red localization product) using antigen retrieval in the outer annulus (Figure 5A) and inner annulus (Figure 5B). Figure 5C shows an adjacent negative control.

Gruber et al. Arthritis Research & Therapy 2011 13:R140   doi:10.1186/ar3454
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