Figure 1From: Mechanochemical endovenous Ablation versus RADiOfrequeNcy Ablation in the treatment of primary great saphenous vein incompetence (MARADONA): study protocol for a randomized controlled trial This figure illustrates the study design. A total of 460 patients will be randomized to radiofrequency ablation (N = 230) or mechanochemical endovenous ablation (N = 230). GSV, great saphenous vein.Back to article page