Feature

  1. Birth Control Pill Probe like That of All Drugs

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  2. Nature Note

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  3. Doctors Are Reading

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  4. Enzyme High in Dystrophy

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  5. Books of the Week

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  6. Current U.S. Patents

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  7. Women Cooperate Less

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  8. Polarized Radio Waves from Distant Source

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  9. Men in Space Exercise

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  10. [Photograph]: Solar Air Heaters

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  11. Front Matter

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  12. Mice Swim in Drug Study

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