Oliveira, R. de Ávila, A. C. P. Mazzucca, D. V. Pachito, R. Riera, and J. C. da C. Baptista-Silva. “Evidence for Varicose Vein Treatment: An Overview of Systematic Reviews”. São Paulo Medical Journal, vol. 136, no. 4, Aug. 2018, pp. 324-32, https://periodicosapm.emnuvens.com.br/spmj/article/view/1215.