European Venous Forum
www.europeanvenousforum.org

Deutsche Gesellschaft für Phlebologie
www.phlebology.de

Swiss Society of Phlebology
www.phlebology.ch

American Venous Forum
www.venous-info.com

European Society for Vascular Surgery
www.esvs.org

American College of Phlebology
www.phlebology.org

International Union of Phlebology
www.uip-phlebologyonline.org

International Union of Angiology
www.i.u.angiology.org

Chronic Venous Disorders Forum
www.cvdforum.veinclinics.com

Phlebolymphology
www.phlebolymphology.org

Belgian Surgical Website
www.belsurg.org

Belgian Society on Thrombosis and Haemostasis
www.bsth.be