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4 “... the National Academy of Sciences, National Academy of Engineering, and Institute of Medicine, recommends...”

5 “...This book is the result of a joint research effort led by the U.S. National Academy of Sciences...”

6 Subjects: “...Science...”

7 “.... In response to this interest, the National Academies of Sciences, Engineering, and Medicine's Forum...”

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16 “... of Sciences convened an Arthur M.Sackler Colloquium entitled "Self-Perpetuating Structural States in Biology...”

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