1. Department of Surgery, Hospitalar Centre of Medio-Ave, Vila Nova de Famalicão, Portugal
2. Department of Angiology and Vascular Surgery, University Hospitalar Centre of Sao Joao, Porto, Portugal
3. Faculty of Medicine of University of Porto, Portugal
4. Department of Biomedicine, Unity of Anatomy, Faculty of Medicine, University of Porto, Portugal
5. CINTESIS@RISE – Centre for Health Technology and Services Research, Porto, Portugal
6. MEDCIDS – Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Portugal
7. Department of Physiology and Surgery, Faculty of Medicine, University of Porto, Portugal