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Start Over You searched for: Copyright Copyright may apply Remove constraint Copyright: Copyright may apply Publication Year 1940 Remove constraint Publication Year: <span class="single" data-blrl-single="1940">1940</span>

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21. Letter from DeWitt Stetten to Edward Mellanby

22. Directions for Culturing Plasma

23. Letter from Charles R. Drew to John Beattie

24. Meeting of the Committee on Research Projects