Figure 7. Immunohistochemical localization of β-endorphin in human synovium.

Figure 7

Immunohistochemical localization of β-endorphin in human synovium. A, noninflamed synovium; B, inflamed synovium. Bar = 20 μm.

From: Morphological Correlates of Immune-Mediated Peripheral Opioid Analgesia

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