1. FSBI Research Centre for Medical Genetics; Moscow Russia
2. Division of Neuroblastoma Genomics; German Cancer Research Center (DKFZ); Heidelberg Germany
3. Klinik fuer Allgemein-, Viszeral-, Thorax- und minimal-invasive Chirurgie; Pforzheim Germany
4. Petrov Institute of Oncology; St Petersburg Russia
5. St. Petersburg Pediatric Medical University; Sankt-Peterburg Russia
6. Mechnikov North-Western Medical University; Saint Petersburg Russia