1. T. L. M. Medical Center, Tel-Aviv, Israel
2. Department of Vascular Surgery, Rabin Medical Center, Petach Tikva, Israel
3. Department of Vascular Surgery, the Chaim Sheba Medical Center, Tel Hashomer, Israel
4. Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
5. Department of Vascular Surgery and Endovascular Therapy, SANA Hospital Group, Düsseldorf, Germany
6. Academic Teaching Hospital, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
7. Center for Vein Disease, Englewood Health Network, Englewood, NJ, USA