Name Info Provider Link
Vitamin D free resource MedlinePlus Health Information https://medlineplus.gov/vitamind.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/38280944/
subscription/membership/fee required Springer https://dx.doi.org/10.1007/s00394-023-03299-2
free resource Europe PubMed Central https://europepmc.org/abstract/MED/38280944