1. Dexter, T.M. 1981. Self-renewing haemopoietic progenitor cells and the factors controlling proliferation and differentiation. In: Microenvironments in Haemopoietic and Lymphoid Differentiation. Ciba Foundation Symposium. Vol 84. 22–31.
2. Moore, M.A.S., and J.J.T. Owen. 1967. Stem cell migration in developing myeloid systems. Lancet 2: 658–659.
3. Johnson, G.R. and M.A.S. Moore. 1975. Role of stem cell migration of mouse fetal liver hemopoiesis. Nature 258: 726–728.
4. Wong, P.M.C., S-W. Chung, S.M. Reicheld, and D.H.K. Chui. 1986 Hemoglobin switching during murine embryonic development. Evidence for two populations of embryonic erythropoietic progenitor cells. Blood 67: 716–721.
5. Wong, P.M.C., S-W. Chung, D.H.K. Chui, and C.J. Eaves. 1986. Properties of the earliest clonogenic hemopoietic precursors to appear in the developing murine yolk sac. Proc. Natl. Acad. Sci. USA 38: 3851–3854.