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Start Over You searched for: Copyright Copyright may apply Remove constraint Copyright: Copyright may apply Publication Year 1950 Remove constraint Publication Year: <span class="single" data-blrl-single="1950">1950</span>

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31. Curriculum vitae of Charles Drew

33. Excerpt from Fred Soper's first report as the Pan American Health Organization's director

38. Letter from George W. Beadle to Joshua Lederberg

39. Letter from David M. Bonner to Edward L. Tatum

40. Letter from Edward L. Tatum to Joshua Lederberg