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Nature 441, 790-791 (15 June 2006) | doi:10.1038/441790b; Published online 14 June 2006

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Koreans admit disguising stem-cell lines

David Cyranoski & Erika Check

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Police investigation uncovers hospital's subterfuge.

Federally funded US researchers were supplied with a prohibited stem-cell line, disguised as an approved line by researchers at Seoul's MizMedi hospital. Allegations that a cell line had been switched surfaced earlier this month (see Nature 441, 680; 2006).