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Sources Gilbert, S.F. Developmental Biology. 7th Ed. Sinauer Associates, Sutherland, MA. 2003. Johnson, L.J. Johnson and Volpe's Patterns and Experiments in Developmental Biology. 3rd Ed. McGraw Hill, Boston, MA. 2001. Pence, G.E. Flesh of My Flesh: The Ethics of Human Cloning. Rowman and Littlefield Publishers, Inc. (Oxford, 1998) Stern, C.D. Essential Developmental Biology: a practical approach. Oxford University Press, Oxford, 1993. |