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Leonian, Leon H. (Leon Hatchig), 1888-1945.
Remove constraint All Creators: Leonian, Leon H. (Leon Hatchig), 1888-1945.
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Fungi--Growth.
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Vitamin B1.
Remove constraint All Subjects: Vitamin B1.
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Nitrogen--Physiological effect.
Remove constraint Subject Topical: Nitrogen--Physiological effect.
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