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(A) Incubation of intact pellets with trypsin did not release any cells, (B) while incubation with trypsin of pieces scraped from pellets released cells, the majority of which were dead. The numbers of released cells from the scraped pieces are shown after 10 min (C) with corresponding morphology (D); after 20 min (E) with corresponding morphology (F); and after 30 min (G) with corresponding morphology (H). Bar: 100 μm.
