https://www.cochrane.org/fr/CD005624/PVD_quelles-sont-les-meilleures-procedures-dans-le-traitement-des-varices-des-membres-inferieurs 2021 false false false France United Kingdom French meta-analysis saphenous vein treatment outcome french abstract comparative study varicose veins stripping, nos sclerotherapy moss Radiofrequency Ablation laser therapy varicose veins