1 UniC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal; Department of Angiology and Vascular Surgery, Centro Hospitalar De Trás-Os-Montes E Alto Douro, E.P.E, Vila Real, Portugal. Electronic address: oliveirapintoj89@gmail.com.
2 Department of surgical sciences, Section of Vascular Surgery, Uppsala University, Uppsala, Sweden.