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Fig. 8. Morphological changes during serial subculture of chondrosarcoma cells. Phase-contrast micrographs showing cellular morphology before and after 20 PDs are shown. CS-2 (left, 2 PDs; right, 25 PDs); CS-3 (left, 5 PDs; right, 27 PDs); CS-4 (left, 2 PDs; right, 24 PDs); CS-8 (left, 1 PD; right, 43 PDs). Bar (lower right), 100 µm.