1 Department of Dermatology-Center of Pediatric Dermatology, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Center of Rare Skin Diseases, Vascular Anomaly Center Erasmus MC Rotterdam, the Netherlands.
2 Department of Pediatrics (Hemato-oncology), Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Center of Rare Skin Diseases, Vascular Anomaly Center Erasmus MC Rotterdam, the Netherlands.
3 Department of Pediatric Cardiology, Wilhelmina Children's Hospital, University Medical Center Utrecht, the Netherlands.
4 Department of Dermatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, UMC Utrecht Center for Vascular Anomalies, the Netherlands.
5 Department of Intensive Care and Pediatric Surgery, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, Center of Rare Skin Diseases, Vascular Anomaly Center Erasmus MC Rotterdam, the Netherlands.
6 Department of Surgery, Wilhelmina Children's Hospital, University Medical Center Utrecht, the Netherlands.
7 Department of Child and Adolescent Psychology/Psychiatry, Erasmus MC Sophia Children's Hospital, University Medical Center Rotterdam, the Netherlands.
8 Department of Plastic Surgery, Wilhelmina Children's Hospital, University Medical Center Utrecht, UMC Utrecht Center for Vascular Anomalies, the Netherlands.
9 Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC Location University of Amsterdam, the Netherlands.
10 Department of Pharmacology and Toxicology, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.
11 Department Emma Children's Hospital, Amsterdam UMC Location University of Amsterdam, the Netherlands.