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Isolation and characterization of human fetal liver stromal cells (hFLSCs). ((a) and (b)): hFLSCs derived from 24-week fetal liver showed morphology of flattened fibroblast-like cells when grown to confluency. Bars = 100 μm. (c) Surface marker of hFLSCs analyzed by flow cytometry. ((d) and (e)) Normal 46, XY karyotype of hFLSCs for 20 passages.
