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Human CD34+ hair follicle cells transplanted to nude mouse located in the ORS region of mouse hair follicle. Human specific DNA was not detected in control mouse (A), but identified in ORS of CD34+ human hair follicle cell-injected mouse hair follicle (B,C arrows) by in situ hybridization. Vertical section of mouse hair follicle (A, B); transverse section of CD34 human hair follicle cell-injected mouse hair follicle (C). (original magnification A, B; ×200, C; ×800).
