Figure 5.

Immunolocalization of brain-derived neurotrophic factor in sand rat intervertebral discs. (a) Immunolocalization of brain-derived neurotrophic factor in a lumbar sand rat intervertebral disc. OA, outer annulus; IA, inner annulus; arrow, negative cell in the IA. (b) Negative control. Bars = 50 μm.

Gruber et al. Arthritis Research & Therapy 2008 10:R82   doi:10.1186/ar2456
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