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Formation of cell arrays on Transwells. (A) Optical and fluorescent images of an array of COS7 cells stained with Calcein-AM. Images were taken right after and 7 days after seeding the cells. (B) Optical and fluorescent images of an array of mES cells stably transfected with SOX17-EGFP on days 3 and 7. Scale bars: 500 μm. mES, mouse embryonic stem. EGFP, enhanced green fluorescent protein. Color images available online at www.liebertonline.com/ten.
