300,000 IU of Vitamin D - many studies

50+ VitaminDWiki pages have 300,000 in the title

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At least 18+ VitaminDWiki injection pages have 300,000 in the title

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VitaminDWiki – Injection - few reasons to have this expensive form with slow response

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VitaminDWiki – Comparing High-dose vitamin D therapies contains:

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VitaminDWiki – High-Dose contains:

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