1 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany.
2 European Confederation of Primary Care Pediatricians (EPCP), Lyone, France.
3 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany. Electronic address: [email protected].