Varisolve European Phase III Investigators Group. Varisolve® polidocanol microfoam compared with surgery or sclerotherapy in the management of varicose veins in the presence of trunk vein incompetence: European randomized controlled trial - Wright, D; Gobin, JP; Bradbury, AW; Coleridge-Smith, P; Spoelstra, H; Berridge, D; Wittens, CHA; Sommer, A; Nelzen, O; Chanter, D (Phlebology, 2006)