Chu de Toulouse, Toulouse, France
Federal State Budgetary Institution, Moscow, Russian Federation
Universitätskinderklinikum Würzburg, Würzburg, Germany
Health Sciences Centre Winnipeg, University of Manitoba, Winnipeg, Manitoba, Canada
Shriner's Hospital for Children, Saint Louis, Missouri, United States
Duke University Medical Center, Durham, North Carolina, United States
Shriners Hospital for Children, Saint Louis, Missouri, United States
The University of Manitoba Health Services Centre, Winnipeg, Manitoba, Canada
Vanderbilt Children's Hospital, Nashville, Tennessee, United States
Alfred I. duPont Hospital for Children, Wilmington, Delaware, United States
St. John's Hospital, Springfield, Missouri, United States