An Evidence-Based Review on Medicinal Value of Clays in Traditional Persian Medicine.

Hosseinkhani A, Montaseri H, Hosamo A, Zarshenas MM
Curr Drug Discov Technol. 2017;14(1):2-7. doi: 10.2174/1570163813666161007160036

https://www.ncbi.nlm.nih.gov/pubmed/27748171