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- 26 Physics
- 25 Biophysics
- 25 Nuclear Physics
- 22 Hormones
- 21 Cell Biology
- 21 Chemistry
- 21 Enzymes
- 20 Chromatography
- 20 Genetics
- 18 Genetics & evolution
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Date issued
- 686 1900 - 1973
- 2 1814 - 1899
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- 689 true