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Amazon.com: Vitamin D3 20,000 IU + K2( MK7 ) 200mcg - Once Daily Dose, Optimal Level -Support Strong Bone, Immune Health & Calcium Absorption, Helping Vitamin D Deficiencies, Easy to Swallow, 240
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Amazon.com: Vitamatic Vitamin D3 50,000 IU (as Cholecalciferol), Once Weekly Dose, 1250 mcg, 60 Veggie Capsules 1 Year Supply, Progressive Formula Helping Vitamin D Deficiencies (60 Count (Pack of 1)) : Health & Household
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High-dose vitamin D supplementation in pregnancy and 25(OH)D sufficiency in childhood reduce the risk of fractures and improve bone mineralization in childhood: Follow-up of a randomized clinical trial - eClinicalMedicine
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Frontiers | Vitamin D Resistance as a Possible Cause of Autoimmune Diseases: A Hypothesis Confirmed by a Therapeutic High-Dose Vitamin D Protocol
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