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Nature 438, 422 (24 November 2005) | doi:10.1038/438422a; Published online 23 November 2005

Bush's policy stopped US gaining stem-cell lead

Robert Lanza1 & Ronald M. Green2

  1. Advanced Cell Technology, 381 Plantation Street, Worcester, Massachusetts 01605, USA and Institute of Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA
  2. Ethics Institute, Dartmouth College, Hanover, New Hampshire 03755-3500, USA

Your News story "Korea launches network to share cloning information" (Nature 437, 1077; 2005) reports the establishment of the World Stem Cell Hub, under the direction of Professor Woo Suk Hwang. Hwang's research team have developed a highly efficient recipe for producing human embryos through somatic-cell nuclear transfer (SCNT) and then extracting their stem cells (W.

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