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Selected vitamins and trace elements support immune function by strengthening epithelial barriers and cellular and humoral immune responses | British Journal of Nutrition | Cambridge Core
Nature Made Super C with Vitamin D3 and Zinc Tablets | Walgreens
Vitamin D Versus Vitamin C: The Match Up - NBPure
Vitadaily - VITAVIVA
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Vitamin C + D Immune Support Powder - Orange - 30ct - Up & Up™ : Target
Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation & Overview - YouTube
Frontiers | Zinc, Vitamin D and Vitamin C: Perspectives for COVID-19 With a Focus on Physical Tissue Barrier Integrity
Nutrients | Free Full-Text | Vitamin C and Immune Function
Immune-boosting role of vitamins D, C, E, zinc, selenium and omega-3 fatty acids: Could they help against COVID-19? - ScienceDirect
Comparative effects of vitamin D and vitamin C supplementations with and without endurance physical activity on metabolic syndrome patients: a randomized controlled trial | Diabetology & Metabolic Syndrome | Full Text
Vitamin effects on the immune system: vitamins A and D take centre stage | Nature Reviews Immunology
Nature Made Super C with Vitamin D3 and Zinc Tablets, Dietary Supplement, 70 Count - Walmart.com
Emergen-C With Vitamin D Dietary Supplement Super Orange | Walgreens
Amazon.com: Immune Support Supplement with Zinc Vitamin C Vitamin D 5000 IU Elderberry Ginger D3 Goldenseal - Dr Approved Immunity Vitamins for Adults Women and Men - Natural Immune System Booster Defense -
Vitamin D and COVID-19: Could low vitamin D levels affect coronavirus?
World Health Organization (WHO) - FACT: Vitamin and mineral supplements cannot cure COVID-19. WHO is coordinating efforts to develop and evaluate medicines to treat COVID-19. | Facebook
Airborne Vitamin C + Vitamin D & Zinc Immune Support Gummies Mixed Berry | Walgreens
Frontiers | The Long History of Vitamin C: From Prevention of the Common Cold to Potential Aid in the Treatment of COVID-19
Evidences for a protective role of vitamin D in COVID-19 | RMD Open
Nutrients | Free Full-Text | Vitamin D3 as Potential Treatment Adjuncts for COVID-19
Emergen-c Immune+ Dietary Supplement Chewable Tablets With Vitamin D - Orange Blast - 42ct : Target
