@article{alecrim_2025,  title={The venous sympathetic block in chronic pain practice: absence of evidence, presence of use?},  volume={75},  ISSN={2352-2291},  url={https://doi.org/10.1016/j.bjane.2025.844666},  DOI={10.1016/j.bjane.2025.844666},  number={6},  journal={Brazilian Journal of Anesthesiology},  publisher={Sociedade Brasileira de Anestesiologia (SBA)},  author={Alecrim, Hugo Muscelli},  year={2025},  pages={844666} }