Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0264-410X(23)00341-9
Vitamin D Deficiency free resource MedlinePlus Health Information https://medlineplus.gov/vitaminddeficiency.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/37003908/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/37003908