Name Info Provider Link
Complementary and Integrative Medicine free resource MedlinePlus Health Information https://medlineplus.gov/complementaryandintegrativemedicine.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30565073/
subscription/membership/fee required Springer https://dx.doi.org/10.1007/s40271-018-0353-1
free resource Europe PubMed Central https://europepmc.org/abstract/MED/30565073