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  1. Nonsyndromic Retinitis Pigmentosa Overview - GeneReviews® - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK1417
    ... A, Weigel-DiFranco C, Rosner B, Berson EL. Safety of <7500 RE (<25000 IU) vitamin A daily in adults with retinitis pigmentosa. Am J ...
  2. NLM Digital Collections - Inotersen and patisiran for hereditary transthyretin amyloidosis : effectiveness and value : .... 
    Publication: [Boston, Massachusetts] : Institute for Clinical and Economic Review, October 4, 2018
    resource.nlm.nih.gov/101745015
    ... and APOLLO trials required patients to take daily vitamin A supplements. Long-term safety is also a key uncertainty. As novel therapies ...
  3. Vision - night blindness 
    https://medlineplus.gov/ency/article/003039.htm
    ... Treatable causes: Cataracts Nearsightedness Use of certain drugs Vitamin A deficiency (rare) Nontreatable causes: Birth defects, particularly congenital stationary night blindness Retinitis pigmentosa
  4. NLM Digital Collections - The nutrition front : report of the New York State Joint Legislative Committee on Nutrition 
    Publication: [Albany, NY] : New York State Joint Legislative Committee on Nutrition, 1943
    resource.nlm.nih.gov/13931110R
    ... has made outstanding dietary contributions by raising the Vitamin A, Thiamin and ascorbic acid content to the safety level, as well as providing increased quantities of ...
  5. NLM Digital Collections - The Response to the Pandemic by the United States, April 18-20, 1988 
    https://resource.nlm.nih.gov/101083016X13
    ... and measles; investigations of the health benefits of vitamin A supplementation; evaluation of the safety and efficacy of contraceptives; field studies of ivemectin ...
  6. NLM Digital Collections - Presidential Commission on the HIV Epidemic, hearing on Response to the Pandemic by the ... 
    Publication: Produced: 19 April 1988
    resource.nlm.nih.gov/101763264X120
    ... and measles; investigations of the health benefits of vitamin A supplementation; evaluation of the safety and efficacy of contraceptives; field studies of ivemectin ...
  7. NLM Digital Collections - AIDS Tracer M, 2/8/1988-3/31/1988 
    https://resource.nlm.nih.gov/101637321X54
    ... selenium. Beta carotene can be ged with complete safety as the source of vitamin A. In the case of selenium, she dangers of ...
  8. NLM Digital Collections - Nutrition-- for young and old 
    Publication: Newburgh, New York : New York State Joint Legislative Committee on Nutrition, 1946
    resource.nlm.nih.gov/08710300R
    ... for other family mem- bers. group to a safety level insofar as vitamin A, thiamin, and ascorbic acid content were concerned, was ...
  9. xmlvitaminsdefinitions.xml 
    https://medlineplus.gov/xml/vitaminsdefinitions.xml
    ... the testing that drugs do for effectiveness and safety.</definition></term-group><term-group ><term >>Fat-Soluble Vitamins</term><definition >>Fat-soluble vitamins include vitamins A, D, E, and K. The body stores fat- ...
  10. Definitions of Health Terms: Vitamins 
    https://medlineplus.gov/definitions/vitaminsdefinitions.html
    ... the testing that drugs do for effectiveness and safety. Source : National Institutes of Health, Office of Dietary Supplements Fat-Soluble Vitamins Fat-soluble vitamins include vitamins A, D, E, and K. The body stores fat- ...
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