1 Department of Pediatric Surgery, Erasmus Medical Center Sophia Children's Hospital, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands. w.irvine@erasmusmc.nl.
2 Department of Pediatric Surgery, Erasmus Medical Center Sophia Children's Hospital, Dr. Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands.
3 Dutch Institute for Clinical Auditing, Leiden, The Netherlands.
4 Department of Pediatric Surgery, University of Padua, Padua, Italy.
5 Department of Pediatric Surgery, Hannover Medical School, Hannover, Germany.
6 Department of Pediatric Surgery, Mannheim University Hospital, Mannheim, Germany.
7 Department of Pediatric Surgery, University Hospital Gent, Gent, Belgium.
8 Department of Pediatric Surgery, Uppsala University Hospital, Uppsala, Sweden.
9 Department of Pediatric Surgery, Oslo University Hospital, Oslo, Norway.
10 Department of Pediatric Surgery, Papa Giovanni XXIII Hospital, Bergamo, Italy.
11 Department of Pediatric Surgery, Lille University Hospital, Lille, France.
12 Department of Pediatric Surgery, Helsinki Children's Hospital, Helsinki, Finland.
13 Department of Pediatric Surgery, Frankfurt University Hospital, Frankfurt, Germany.
14 Department of Pediatric surgery, La Timone Children's Hospital, Marseille, France.
15 Department of Surgery, University Hospitals Leuven, Leuven, Belgium.
16 Department of Pediatric Surgery, Lithuanian University of Health Sciences, Kaunas, Lithuania.
17 Department of Obstetrics and Gynecology, Antoine Béclère Hospital Paris Sarclay University, Clamart, France.
18 Department of Obstetrics and Gynaecology - Division of Obstetrics and Fetal Medicine, Erasmus MC University Medical Centre-Sophia Children's Hospital, Rotterdam, The Netherlands.
19 Department of Maternal and Fetal Medicine, Karolinska University Hospital, Stockholm, Sweden.
20 Department of Obstetrics and Gynaecology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
21 Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium.
22 Department of Neonatology, University Hospital La Paz, Madrid, Spain.
23 Department of Pediatric Surgery, University Hospital Motol, Prague, Czech Republic.
24 Department of Neonatology, Oslo University Hospital, Oslo, Norway.
25 Department of Neonatology, Bonn University Hospital, Bonn, Germany.
26 Department of Neonatology, Lille University Hospital, Lille, France.
27 Department of Neonatology, University of Padua, Padua, Italy.
28 27. Developmental Biology and Cancer Research and Teaching Programme, UCL Great Ormond Street Institute of Child Health, London, UK.
29 Department of Pediatric Surgery, Karolinska University Hospital, Stockholm, Sweden.