1. Department of Vascular and Endovascular Surgery; Center for Vascular Medicine, Military Hospital Ulm; Ulm Germany
2. Department of Traumatology and Orthopaedic, Septic and Reconstructive Surgery, Research and Treatment Center for Complex Combat Injuries; Wound Centre Berlin, Military Hospital Berlin; Berlin Germany
3. University Heart Center, Department of Vascular Medicine; University Medical Center Hamburg; Hamburg Germany