Affiliation: | (1) Department of Paediatrics, Division of Haematology-Oncology, Erasmus University and University Hospital Rotterdam/Sophia Children's Hospital, Gordelweg 160, 3038 GE Rotterdam, The Netherlands;(2) Department of Dermatology and Venereology, Division of Paediatric Dermatology, Erasmus University and University Hospital Rotterdam/Sophia Children's Hospital, Gordelweg 160, 3038 GE Rotterdam, The Netherlands;(3) Department of Paediatrics, Division of Gastro-enterology, Erasmus University and University Hospital Rotterdam/Sophia Children's Hospital, Gordelweg 160, 3038 GE Rotterdam, The Netherlands |