Toxicology of silica nanoparticles: an update, Murugadoss, Sivakumar, Lison Dominique, Godderis Lode, van den Brûle Sybille, Mast Jan, Brassinne Frederic, Sebaihi Noham, and Hoet Peter H. , Archives of Toxicology,  1 June 2017 , Volume 91, Number 3010, (2017)