A Randomized Clinical Study of Radiofrequency Ablation Versus 1470nm Laser for Great Saphenous Vein Reflux. (December 2019) - Karathanos, Christos; Spanos, Konstantinos; Nana, Petroula; Batzalexis, Konstantinos; Kouvelos, Georgios; Giannoukas, Athanasios