[1] Hop Tousseau, AP HP, Pediat Surg, Paris, France
[2] Hop Trousseau, AP HP, Pediat Radiol, Paris, France
[3] Curie Inst, Pediat Radiol, Paris, France
[4] Newcastle Tyne Upon Hosp NHS Fdn Trust, Newcastle, NSW, Australia
[5] Giannina Gaslini Inst, Pediat Radiol, Genoa, Italy
[6] Giannina Gaslini Inst, Pediat Surg, Genoa, Italy
[7] Hosp La Fe, Pediat Surg, Valencia, Spain
[8] Royal Manchester Childrens Hosp, Pediat Surg, Manchester, Lancs, England
[9] Karolinska Univ Hosp, Pediat Surg & Urol, Stockholm, Sweden
[10] Karolinska Univ Hosp, Pediat Radiol, Stockholm, Sweden
[11] CHU Grenoble, Serv Immunohematooncol Pediat, Grenoble, France
[12] Princess Elisabeth Childrens Hosp, Neonatal & Paediat Surg, Ghent, Belgium
[13] CHUV Lausanne, Serv Chirurg Pediat, Lausanne, Switzerland
[14] Oslo Univ Hosp, Pediat Surg, Oslo, Norway
[15] Oslo Univ Hosp, Pediat Radiol, Oslo, Norway
[16] Pediat Surg, Great Ormond St Children, London, England
[17] Great Ormond St Hosp Sick Children, Pediat Radiol, London, England
[18] Hop Necker Enfants Malad, AP HP, Pediat Surg, Paris, France