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Vitamin A
Antioxidants
beta Carotene
Vitamin E
Ascorbic Acid
Reactive Oxygen Species
Carotenoids
Vitamins
Tretinoin
alpha-Tocopherol
Vitamin A Deficiency
Oxidative Stress
Rats
Sprague Dawley Rats
Dietary Supplements
High Pressure Liquid Chromatography
Oxidation-Reduction
Drug Dose Response Relationship
Skin
Nutritional Status
Co-Publications
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