1. Department of Pediatric Surgery, Hôpital des Enfants, Limoges, France
2. Department of Pediatric Surgery, Hôpital Universitaire Necker-Enfants malades, Paris, Île-de-France, France
3. Department of Pediatric Surgery, Centre Hospitalier Regional Universitaire de Tours, Tours, Centre Region, France
4. Department of Pediatric Surgery, Centre Hospitalier Universitaire de Rennes, Rennes, Bretagne, France
5. Department of Pediatric Surgery, Centre Hospitalier Universitaire de Toulouse, Toulouse, Midi-Pyrénées, France
6. Department of Pediatric Surgery, Necker-Enfants Malades Hospitals, Paris, Île-de-France, France
7. Department of Pediatric Surgery, Robert-Debré Mother-Child University Hospital, Paris, Île-de-France, France
8. Department of Pediatric Surgery, Centre Hospitalier Universitaire de Limoges, Limoges, Limousin, France