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Nature 420, 602-604 (12 December 2002) | doi:10.1038/420602a

Research materials: Share and share alike?

David Cyranoski1

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Producing a popular research tool will make you a lot of friends in science. But meeting requests to supply the material puts a heavy burden on your lab. David Cyranoski examines a system under pressure.

Yoshihide Hayashizaki is exasperated. Last year his team published a paper1 describing a collection of mouse complementary DNAs (cDNAs) representing the coding sequences of thousands of genes.