@article{miranda_fidel_boller_2009,  title={L929 cell response to root perforation repair cements: an in vitro cytotoxicity assay},  volume={20},  ISSN={0103-6440},  url={https://doi.org/10.1590/S0103-64402009000100003},  DOI={10.1590/S0103-64402009000100003},  number={1},  journal={Brazilian Dental Journal},  publisher={Fundação Odontológica de Ribeirão Preto},  author={Miranda, Rosana Belchior and Fidel, Sandra Rivera and Boller, Maria Aparecida Affonso},  year={2009},  pages={22–26} }