Jochen Ehrich1, Eleanor Molloy2, Massimo Pettoello-Mantovani3. 1. European Paediatric Association/Union of National Paediatric Societies and Associations, Berlin, Germany; Children's Hospital, Hannover Medical School, Hannover, Germany. Electronic address: Ehrich.jochen@mh-hannover.de. 2. Trinity College, The University of Dublin, Tallaght Hospital, Dublin, Ireland. 3. European Paediatric Association/Union of National Paediatric Societies and Associations, Berlin, Germany; Institute of Pediatrics, University of Foggia, Scientific Institute "Casa Sollievo", Foggia, Italy.