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Start Over You searched for: Genre Letters (correspondence) Remove constraint Genre: Letters (correspondence) Publication Year 1900 to 1999 Remove constraint Publication Year: <span class="from" data-blrl-begin="1900">1900</span> to <span class="to" data-blrl-end="1999">1999</span>

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3. Arms Control [Letter to the Editor of Science]

4. Avery in Retrospect

5. Avery in Retrospect

7. Avery in Retrospect