I-liba Badreldin Khalil, Hala Gabr MetwallyAhmed M .Taha, E1shibli Elshibli2018-10-182018-10-182010-10http://hdl.handle.net/123456789/13273Human umbilical cord blood is a rich source of haernopoietic stern cells (CD34 ) beside the bone marrow . The number of CD34 from BM decrease significantly with age, and their isolation is invasive and can cause infection, bleeding, and chronic pain .Hulna.n UCB is obtained alter full-term delivery of the newbom from a sample that would inevitably be discarded . The process is noninvasive, painless, and without harm for the mother or the infant .In the present study we aimed to assess isolation, differentiation, and the proliferation using variable techniques.enStem cellsUmbilical cordHematologyArticle