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Characteristics of rat bone marrow-derived EPCs. A. EPCs showing typical spindle-like morphology (100×). B. Cord-like structures observed after 7 days of culture (100×). C. Network formation observed after 7 days of culture (100×). D. EPCs showing cobblestone-like morphology after 3 weeks of culture (100×). E. EPCs take part in network formation tubular-like structures on Matrigel (40×). F-H. Flow cytometric analysis of surface markers (CD133, CD34, and VEGFR-2) on EPCs.
