A regulatory patchwork—human ES cell research oversight

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Permissive regulations in a few regions of the world are dictating where human embryonic stem (hES) cell research is taking place, but this could change as numerous countries are still formulating policy.

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Figure 1
Figure 2: Somatic nuclear transfer for therapeutic cloning.


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My sincere thanks to Michael Khair and Lori Sheremeta for their research assistance and to LeRoy Walters for his invaluable comments on an earlier draft.

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Knowles, L. A regulatory patchwork—human ES cell research oversight. Nat Biotechnol 22, 157–163 (2004) doi:10.1038/nbt0204-157

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