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Figure 2 | BMC Biotechnology

Figure 2

From: Unrestricted somatic stem cells from human umbilical cord blood grow in serum-free medium as spheres

Figure 2

Characterisation of spheres. A, Morphology of spheres seven days after seeding at high density (1 × 104 cells/30 μl) as hanging drops in the presence or absence of bFGF in: i, stem cell proliferation medium without fetal calf serum; or ii, USSC growth mediumACF. (Magnification, ×200; scale bar is 100 μm) B, Serial sections of spheres stained with haematoxylin and eosin, generated by culturing in USSC growth mediumACF for seven days at both ×200 and ×400 magnification; scale bar is 100 μm.

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