1. Child Development & Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, The Netherlands.
2. Cardiorespiratory Unit, Great Ormond Street Hospital For Children – UCL Institute of Child Health, London, UK.
3. Department of Cardiovascular Rehabilitation University Hospitals Leuven (campus Gasthuisberg); Department Rehabilitation Sciences, University of Leuven, Leuven, Belgium.
4. Department of Pediatric Cardiology, University Hospitals Leuven (campus Gasthuisberg), Leuven, Belgium.
5. Department of Paediatric Cardiology, Children's Heart Centre, University Hospital, Aachen University of Technology, Aachen, Germany.
6. Hospital for Sick Children (Labatt Family Heart Centre), Toronto, Ontario, Canda; University of Toronto (Department of Physical Therapy) Toronto, Ontario Canada, Children's Hospital of Eastern Ontario (Healthy Active Living and Obesity Research Unit), Ottawa, Ontario, Canada.
7. Labatt Family Heart Centre, The Hospital for Sick Children, Department of Pediatrics, University of Toronto, Toronto, Canada.
8. Cardiology Division, The Children's Hospital of Philadelphia Professor of Pediatrics The Perlman School of Medicine The University of Pennsylvania.
9. Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.