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(A) Total proteins were extracted from chondrosarcoma patients (n = 8) and primary chondrocytes (n = 8), and subjected to western blot analysis for BDNF. (B) Immunohistochemistry of BDNF expression in normal cartilage (n = 4) and chondrosarcoma tissue (n = 6). Size bar = 20 µm. Results are expressed as the mean ±standard error of mean (SEM).
