Development of a new zirconia-toughened alumina: Promising mechanical properties and absence of in vitro carcinogenicity, Maccauro, G., Bianchino G., Sangiorgi S., Magnani G., Marotta D., Manicone P.F., Raffaelli L., P. Iommetti Rossi, Stewart A., Cittadini A., et al. , International Journal of Immunopathology and Pharmacology, Volume 22, Number 3, p.773-779, (2009)