Comment to: Great saphenous vein diameter at the saphenofemoral junction and proximal thigh as parameters of venous disease class, by Mendoza E, Blättler W, Amsler F. Eur J Vasc Endovasc Surg 2013;45:76-83. Veins and Lymphatics, v. 2, n. 1, p. 1, 20 Dec.2013.