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Vitamin P: Flavonols as Vitamins


VARIOUS chemical and clinical observations have led to the assumption that ascorbic acid is accompanied in the cell by a substance of similar importance and related activity. In absence of both substances, the symptoms of lack of ascorbic acid (scurvy) prevail and conceal symptoms of the deficiency of the second substance. In the lack of suitable experimental animals or conditions, progress was dependent on spontaneous pathological conditions, caused or influenced by this second factor.

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RUSZNYÁK, S., SZENT-GYÖRGYI, A. Vitamin P: Flavonols as Vitamins. Nature 138, 27 (1936).

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