HAROLD JEGHERS, M.D.
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In contrast to the hundreds of papers concerning the experimental, chemical, and pathological aspects of vitamin A deficiency are the small number of clinical studies. Such clinical investigations as are available deal, for the most part, with infants and children; and until recently, the manifestations of deficiency in adults have been overlooked or ignored.1, 2, 3
Probably few physicians in this country are aware that there are now available several methods of quantitatively estimating the degree of vitamin A deficiency in humans, and further that some of these methods are simple enough for routine clinical use. Investigations in Europe and
JEGHERS H. NIGHT BLINDNESS AS A CRITERION OF VITAMIN A DEFICIENCY: REVIEW OF THE LITERATURE WITH PRELIMINARY OBSERVATIONS OF THE DEGREE AND PREVALENCE OF VITAMIN A DEFICIENCY AMONG ADULTS IN BOTH HEALTH AND DISEASE*. Ann Intern Med. 1937;10:1304–1334. doi: https://doi.org/10.7326/0003-4819-10-9-1304
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Published: Ann Intern Med. 1937;10(9):1304-1334.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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