@article{souza_pereira_costa_gassen_nhuch_renosto_schier_souza_2005,  title={Teste de Valsalva ortostático no refluxo venoso},  volume={4},  ISSN={1677-5449},  url={https://doi.org/10.1590/S1677-54492005000300009},  DOI={10.1590/S1677-54492005000300009},  number={3},  journal={Jornal Vascular Brasileiro},  publisher={Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV)},  author={Souza, Gilberto Gonçalves de and Pereira, Adamastor Humberto and Costa, Luiz Francisco Machado da and Gassen, Edson and Nhuch, Cláudio and Renosto, Régis and Schier, André Silvio and Souza, Leonardo Reis de},  year={2005},  month={Sep},  pages={270–274} }