University of Messina, Messina, Italy
Washington University School of Medicine, St. Louis, Saint Louis, Missouri, United States
University of Milan, Milan, Italy
NYU Langone Medical Center, New York, New York, United States
McMaster University, Hamilton, Ontario, Canada
University of California, Irvine, Orange, California, United States
Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
Women's and Children's Hospital, North Adelaide, South Australia, Australia
Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, United States
Orthopaedic Institute for Children, Los Angeles, California, United States
Boston Children's Hospital, Boston, Massachusetts, United States
Vanderbilt Hemostasis-Thrombosis Clinic, Nashville, Tennessee, United States
Miami Children's Hospital, Miami, Florida, United States
Seattle Children's Hospital, Seattle, Washington, United States
Copenhagen University Hospital, Copenhagen, Denmark
Baylor College of Medicine, Houston, Texas, United States
Hospital Infantil Candido Fontoura Sao Paulo, Sao Paulo, Brazil
Children's Hospital of Orange County, Orange, California, United States
New York University Langone Medical Center, New York, New York, United States
Children's National Health System, Washington, District of Columbia, United States
Centro Hospitalar do Porto, Porto, Portugal
UMHAT "Alexandrovska", Sofia, Bulgaria
Universitร Cattolica, Rome, Italy
The Newcastle upon Tyne Hospitals, Newcastle Upon Tyne, Tyne And Wear, United Kingdom
Children's Hospital Oakland, Oakland, California, United States
Miami Children's Hospital, Miami, Florida, United States
Children's Hospital of Orange County, Orange, California, United States
Children's National Health System, Washington, District of Columbia, United States
University of South Florida, Tampa, Florida, United States
Vanderbilt Medical Center, Nashville, Tennessee, United States