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Background Whether umbilical cord blood (UCB) serves as a source of mesenchymal stem/progenitor cells (MSPC) is controversial. MSPC are the best candidates for cellular therapy of orthopedic skeletal tissues. In order to explore the possibility of UCB as a useful source of MSPC, we identified, expanded in culture, and characterized MSPC from UCB harvests on(More)
Interest in the possibility that the placenta contains organ-specific antigens was stimulated at the beginning of the century by the suggestion that some toxemias of pregnancy might result from maternal sensitization against placental antigens, leading secondarily to renal damage (1). The general principle that an antiserum raised in one species against(More)
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