Photo courtesy of the National Library of Medicine
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McCollum noted ‘Factor A’ deficiency caused cases of ophthalmia in rats (left). ‘Factor A’ would later come to be know as Vitamin A, the first discovered vitamin.
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McCollum noted ‘Factor A’ deficiency caused cases of ophthalmia in rats (left). ‘Factor A’ would later come to be know as Vitamin A, the first discovered vitamin.
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