@article{teixeira_nunes_perini_feres_ovigli_hamerschlak_2022,  title={Progressive multifocal leukoencephalopathy in a patient with relapsed chronic lymphocytic leukemia treated with Ibrutinib},  volume={44},  ISSN={2531-1379},  url={https://doi.org/10.1016/j.htct.2020.11.006},  DOI={10.1016/j.htct.2020.11.006},  number={3},  journal={Hematology, Transfusion and Cell Therapy},  publisher={Associação Brasileira de Hematologia, Hemoterapia e Terapia Celular (ABHH)},  author={Teixeira, Larissa Lane Cardoso and Nunes, Viviane Regina Hernandez and Perini, Guilherme Fleury and Feres, Carolina Cristina Pellegrino and Ovigli, Danielle and Hamerschlak, Nelson},  year={2022},  month={Jul},  pages={437–439} }