Haukeland University Hospital, Bergen, Norway
Paediatric Clinical Research Unit at Osla University Hospital, Oslo, Norway
Hospital Pediátrico de Coimbra, Coimbra, Portugal
Hôpital Universitaire Necker-Enfants Malades, Paris, France
Centre Hospitalier Universitaire (CHU) de Toulouse - Hôpital des Enfants, Toulouse, France
University Hospital Freiburg - Centre for Paediatric and Adolescent Medicine, Freiburg, Baden-Wurtemberg, Germany
QED Investigative Site, Sheffield, United Kingdom
Children's Hospital Colorado, Aurora, Colorado, United States
USCF Benioff Children's Hospital, Oakland, Oakland, California, United States
Nemours Alfred I. Dupont Hospital for Children, Wilmington, Delaware, United States
Johns Hopkins School of Medicine, Baltimore, Maryland, United States
Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
UCSF Benioff Children's Hospital, Oakland, California, United States
The Ohio State University College of Medicine, Columbus, Ohio, United States
Associated Medical Professionals - Syracuse, Syracuse, New York, United States
New Jersey Urology - Saddle Brook, Saddle Brook, New Jersey, United States
University of Montreal, Montréal, Quebec, Canada
Hopital Femme Mere Enfant, Lyon, France
Hopital Necker-Enfants Malades, Paris, France
Parkland Health and Hospital System, Dallas, Texas, United States
Northwestern Memorial Hospital, Chicago, Illinois, United States
Massachusetts General Hospital, Boston, Massachusetts, United States
QED Investigative Site, Nottingham, United Kingdom