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(a) Fluorescence images of HCC827 and NCI-H460 microtissues stained by Cell Tracker Green CMFDA in a well-mesh microchip after 3 days culture; bar = 600 μm. (b) Area of HCC827 and NCI-H460 microtissues formed on different days, n = 4. Microtissues of HCC827 and NCI-H460 cells formed in a well-mesh microchip on day 6; bar = 300 μm.
