@article{biçer_ünalan_aksu_önal_güneş_2019,  title={Addition of dexmedetomidine to bupivacaine in ultrasonography-guided paravertebral blockade potentiates postoperative pain relief among patients undergoing thoracotomy},  volume={69},  ISSN={0034-7094},  url={https://doi.org/10.1016/j.bjane.2018.12.004},  DOI={10.1016/j.bjane.2018.12.004},  number={2},  journal={Revista Brasileira de Anestesiologia},  publisher={Sociedade Brasileira de Anestesiologia},  author={Biçer, Cihangir and Ünalan, Esra Nur and Aksu, Recep and Önal, Ömer and Güneş, Işın},  year={2019},  month={Mar},  pages={144–151} }