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(A) Schematic representation of the IVD. (B, C) Immunofluorescent staining of SDC4 in murine IVD shows strong localization in nucleus pulposus (B) and inner two thirds of the annulus fibrosus (C). Scale bars; 200 μm. NP, nucleus pulposus; AF, annulus fibrosus; CEP, cartilaginous endplate.
