[1] Lausanne Univ Hosp CHUV, Dept Heart & Vasc Dis, Angiol Serv, Rue Bugnon 21, CH-1011 Lausanne, Switzerland
[2] Lausanne Univ Hosp CHUV, Dept Pediat Children & Adolescent Surg Serv, Rue Bugnon 21, CH-1011 Lausanne, Switzerland
[3] Lausanne Univ Hosp CHUV, Dept Radiol, Rue Bugnon 21, CH-1011 Lausanne, Switzerland
[4] Neuchatel Hosp, Visceral Surg Dept, Rue Maladiere 45, CH-2000 Neuchatel, Switzerland