Alves, C., & 		Marques, Ã.
(2012).
 Varicose veins in lower limbs. Doppler ultrasound: venous reflux classification and surgical treatment management.
<em>Revista Portuguesa De Cirurgia, </em>(22), 41-54.
Retrieved from <a href="https://revista.spcir.com/index.php/spcir/article/view/37" target="_new">https://revista.spcir.com/index.php/spcir/article/view/37</a>