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Editorial

Nature 449, 377 (27 September 2007) | doi:10.1038/449377a; Published online 26 September 2007

The long and winding road

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German scientists must persevere in the stem-cell debate, despite the occasional setback.

The German media last week trumpeted the claim that a patient in Dusseldorf with terminal heart failure has been successfully treated with adult stem cells from his own bone marrow. Although clinical researchers know that little can be learnt from a single case study, the result has already been unreasonably exploited by opponents of human embryonic stem-cell research.