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Published online 11 February 2002 | Nature | doi:10.1038/news020204-15
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Double take on cloning
Two new cloning studies have scientists scratching their heads.
The world's labs are home to a steadily growing number of cloned animals. "From a practical viewpoint, cloning is more or less solved," says Davor Solter of the Max Planck institute for Immunobiology, Freiburg, Germany.
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