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Science  29 May 1998:
Vol. 280, Issue 5368, pp. 1319
DOI: 10.1126/science.280.5368.1319e

The Enhanced Research Commentary by G. Anderson and G. Seidel on page 1400 describes advances in cloning farm animals, including the cloning of calves from genetically altered fetal fibroblasts. The online version links to Web sites exploring all aspects of cloning—from procedures for microinjecting DNA into a cell to a summary of the cloning debates by James Watson originally published in The Atlantic Monthly.

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