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Science Sample Content

Not yet a AAAS member/subscriber to Science Online? We invite you to have a look at the 19 December 2008 issue, which we are making available free of charge to all site visitors. Then, please consider becoming a member/subscriber, to start enjoying all the best that science has to offer -- all year round.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)