University Clinical Centre, Dębinki 7, Gdańsk, Poland
Institute of Hematology and Blood Transfusion / Institut Hematologie a krevní transfuze, U nemocnice 1, Prague 2, Czech Republic
Federico II University of Naples, Via Pansini 5, Naples, Italy
Alfred I. DuPont Hospital for Children, Wilmington, Delaware, United States
St. Vincent Hospital, Green Bay, Wisconsin, United States
University of Nebraska Medical Center, Omaha, Nebraska, United States
Shriners Hospital for Children, Saint Louis, Missouri, United States
Children's Hospital Health Sciences Centre, Winnipeg, Manitoba, Canada
Clinical Trial Site, Gent, Oost-Vlaanderen, Belgium