FERREIRA ARQUEZ, Humberto. Facial Vein Variation: A Cadaveric Study. International Archives of Medicine, [S.l.], v. 11, jan. 2018. ISSN 1755-7682. Available at: <http://imedicalsociety.org/ojs/index.php/iam/article/view/2744>. Date accessed: 13 dec. 2018. doi: https://doi.org/10.3823/2547.