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Effect of recombinant reelin on HNSCs differentiated without serum. (a) βIII-tubulin (green) and GFAP (red) at time 0 (×400). (b) Typical time-lapse image of HNSC movements in the presence and absence of recombinant reelin (×50). quicktime movie files of these time-lapse images are published as Movies 1 and 2 as supporting information on the PNAS web site, www.pnas.org.
