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Long-term cultures of CD34+ cells from adult mouse bone marrow. (Upper) Photomicrographs of bone marrow cells at days 7 and 25. (Lower) Growth curves of cells from adult bone marrow of C57BL/6J, C3H, SJL/J, and FVB-129 mice in serum-containing and serum-free media. Growth curves of cells from the four strains of mice in serum-containing and serum-free media were comparable.
