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Shapes of spheres derived from utricle (A–C), organ of Corti (D–F), and spiral ganglion (G–I) directly postmortem (0 h) and after 5 and 10 days. Hollow spheres that did not self-renew were found in preparations from the utricle and organ of Corti and are shown in D, E, and F. Hollow spheres were not included in the sphere size measurements shown in Figure 4 and were not used for further experiments. Scale bars = 40 μm.
