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1) Kobylka, P. Preservation of Immunological and Colony-Forming Capacities of Long-term(15years) Cryopreserved cord blood cells. Transplantation. 1998;65(19):1275-1278.
2) H Mugishima et al. Effects of long term cryopreservation on hematopoietic progenitor cells in umblical cord blood. Bone marrow transplantation 1999;24(4): 395-396.
3) Hal E. Broxmeyer, Edward F. Srour, Giao Hangoc, Scott Cooper, Stacie A. Anderson, and David M. Bodine. High-efficiency recovery of functional hematopoietic progenitor & stem cells from human cord blood cryopreserved for 15 years. Proc Nati Sci U.S.A. 2003;21:100(2):645-650.
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