| Authors: |
van Kempen EB; Department of Paediatrics, Erasmus Medical Center Sophia, Dr. Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands. e.vankempen@erasmusmc.nl.; Department of Paediatrics, Juliana Children's Hospital, Haga Hospital, the Hague, the Netherlands. e.vankempen@erasmusmc.nl., Malmgren A; Department of Paediatrics, Queen Silvia Children's Hospital, Gothenburg, Sweden., Elfving K; Department of Paediatrics, Queen Silvia Children's Hospital, Gothenburg, Sweden.; Department of Pediatrics, Institution for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden., Cohen JF; Department of General Pediatrics and Pediatric Infectious Diseases, Hôpital Necker-Enfants Malades, AP-HP, Université Paris Cité, Paris, France., Borensztajn DM; Department of Paediatrics, Erasmus Medical Center Sophia, Dr. Molewaterplein 40, 3015 GD, Rotterdam, the Netherlands.; Department of Paediatrics, Northwest Clinics, Alkmaar and Den Helder, the Netherlands. |