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Robo1 expression in inflammatory diseases. Pyogenic granuloma (A) and rheumatoid arthritis (B) and exhibit positive Robo1 staining in their newly formed blood vessels. In pyogenic granuloma, Robo1 staining in the newly formed blood vessels is stronger in the surface region than near the normal tissue (A). Robo1 immunostaining. Robo1 immunostaining, (A, B) ×100.
