Abstract
THE International Conference held in London in June 1931 under the auspices of the Permanent Commission on Biological Standardisation of the League of Nations Health Organisation recommended for international adoption standards and units for vitamins A, Bx, C and D, which were to be provisional for two years. As certain of the standard preparations were not available until 1932, the second Conference was postponed until 1934, when two years experience of the practical application of the standards would be available.
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Vitamin Standards. Nature 135, 516–517 (1935). https://doi.org/10.1038/135516a0
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DOI: https://doi.org/10.1038/135516a0