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Results 1 - 1 of 1 for Former
  1. Vitamin A From the National Institutes of Health (National Institutes of Health, Office of Dietary Supplements)  
    ... it. However, several studies have shown that smokers, former smokers, and people exposed to asbestos who take ...
    https://ods.od.nih.gov/factsheets/VitaminA-Consumer - Drugs and Supplements