[1] CHU Amiens, Dept Pediat Surg, Ave Laennec, F-80054 Amiens 1, France
[2] CHU Jean Minjoz, Dept Pediat Surg, Besancon, France
[3] CH Lapeyronie Arnaud de Villeneuve, Dept Pediat Surg, Montpellier, France
[4] CHU Purpan, Hop enfants, Dept Pediat Surg, Toulouse, France
[5] CHR Felix Guyon, Dept Pediat Surg, F-97405 St Denis, Reunion Island, France
[6] Univ Hosp, Dept Pediat Surg, Limoges, France
[7] Trousseau Hosp, Dept Pediat Surg, Paris, France
[8] CHU Rennes, Hop Sud, Dept Pediat Surg, Rennes, France
[9] Children Univ Hosp, Dept Pediat Surg, Tours, France
[10] Aix Marseille Univ, CHU Hop Nord, AP HM, Dept Pediat Surg, Marseille, France
[11] Univ Libre Bruxelles, Hop Univ Enfants Reine Fabiola, Dept Pediat Surg, Brussels, Belgium
[12] Hautepierre Hosp, Univ Med Ctr, Dept Pediat Surg, Strasbourg, France
[13] Hosp Civils Lyon, Hop Femme Mere Enfant, Dept Pediat Surg, Bron, France