@article{jankov ii_hafezi_beko_ignjatovic_djurovic_markovic_schor_2008,  title={Ultra B2 - Promoção de ligações covalentes do colágeno corneal (Corneal cross-linking) no tratamento de ceratocone: resultados preliminares},  volume={71},  ISSN={0004-2749},  url={https://doi.org/10.1590/S0004-27492008000600009},  DOI={10.1590/S0004-27492008000600009},  number={6},  journal={Arquivos Brasileiros de Oftalmologia},  publisher={Conselho Brasileiro de Oftalmologia},  author={Jankov II, Mirko R. and Hafezi, Farhad and Beko, Maja and Ignjatovic, Zora and Djurovic, Branislav and Markovic, Vujica and Schor, Paulo},  year={2008},  month={Nov},  pages={813–818} }