Name Info Provider Link
subscription/membership/fee required Atypon https://www.magonlinelibrary.com/doi/10.12968/bjon.2006.15.12.21395?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Herbal Medicine free resource MedlinePlus Health Information https://medlineplus.gov/herbalmedicine.html