VITAMIN D AND IMMUNITY, LOTS OF EVIDENCE
642,377 views•Apr 15, 2020
DR. JOHN CAMPBELL
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To download John's e text books, please go to
https://campbellteaching.co.uk/ebooks/
Public Health England
Vitamin D recommendations
https://www.gov.uk/government/news/ph...
Grateful thanks to DR. JOHN CAMPBELL and
YouTube.
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