Here is the most recent systematic review I could find, from 2017, which concludes: “At longest follow-up, there was a 12% observed reduction in the risk of all-cause mortality for vitamin A compared ...
Department of Pharmacology, University of Michigan, Ann Arbor, Michigan 48109, United States Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States Biointerfaces ...
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