Vitamin D, the study of diseasedrjohncampbell (54)in #health • 12 days ago With Dr. David Grimes, http://www.drdavidgrimes.com https://www.youtube.com/@Campbellteaching https://drjohncampbell.co.uk https://www.patreon.com/JohnCampbell2 #covid #vaccine #gmo #who #wef #doctor