@article{de-abreu_camargo_de-abreu_de-aquino_2017,  title={Ultrasound-guided foam sclerotherapy for severe chronic venous insufficiency},  volume={44},  ISSN={0100-6991},  url={https://doi.org/10.1590/0100-69912017005014},  DOI={10.1590/0100-69912017005014},  number={5},  journal={Revista do Colégio Brasileiro de Cirurgiões},  publisher={Colégio Brasileiro de Cirurgiões},  author={de-Abreu, Guilherme Camargo Gonçalves and Camargo, Otacílio de and de-Abreu, Márcia Fayad Marcondes and de-Aquino, José Luís Braga},  year={2017},  month={Sep},  pages={511–520} }