Evidence for a circulating stem cell: newly formed erythroblasts found in autologous leukocyte-filled diffusion chambers inserted into bled rabbits.


Leukocytes from severely bled rabbits were sedimented and introduced in diffusion chambers that were implanted intraperitoneally into donor animals during the same day. Erythroblasts were found in the Millipore chambers on the fourth day culture. They were present in large numbers from the seventh to eighth day when they comprised 47.5 per cent of the… (More)


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