Toxic effects of a modified montmorillonite clay on the human intestinal cell line Caco-2.

Maisanaba S1, Gutiérrez-Praena D, Pichardo S, Moreno FJ, Jordá M, Cameán AM, Aucejo S, Jos A.
J Appl Toxicol. 2014 Jun;34(6):714-25. doi: 10.1002/jat.2945. Epub 2013 Oct 9

https://www.ncbi.nlm.nih.gov/pubmed/24122917