Feature

  1. Stop That Clot: Proteins Uncovered

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  2. Pauling’s Panacea: No Good for Cancer

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  3. The Compleat Breeder?

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  4. Astronomy

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  5. Catching Some Zs

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  6. The Great AIDS Race: Testing the Test

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  7. Front Matter

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  8. Quasicrystals: A New Ordered Structure

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  9. Teen Drug Use — Except Cocaine — Falls

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  10. Planet X and the Killer Comets

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  11. Signs of a Puzzling Ring around Neptune

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  12. Experimental Detachment

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