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那个年代的爱情剧情介绍: It is also possible to isolate useful amounts of blood stem cells from amniotic fluid and the umbilical cord. Cord blood has a high concentration of stem cells, but only enough for blood stem cell transplants in young children. Using combinations of growth factors, it is possible to amplify the numbers of stem cells in the umbilical cord allowing possible use in adult transplants. Umbilical stem cells generally produce low levels of graft versus host disease. Storage of one’s own umbilical cord stem cells for possible future use in adult life has developed into an expanding business for tissue storage companies.
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