1 Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Vascular Surgery, Hospital do Divino Espírito Santo Ponta Delgada, Azores, Portugal.
2 Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Angiology and Vascular Surgery, Santa Marta Hospital Centro Hospitalar Lisboa Central, Lisbon, Portugal.
3 Department of Vascular Surgery, St. Antonius Hospital, Nieuwegein, The Netherlands.
4 Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
5 Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands.