J. Ghoddusi, J. Tavakkol Afshari, Z. Donyavi, A. Brook, R. Disfani, and M. Esmaeelzadeh, “Cytotoxic effect of a new endodontic cement and mineral trioxide aggregate on L929 line culture”, Iran Endod J, vol. 3, no. 2, pp. 17–23, Nov. 2008.