Pediatric Classical Hodgkin Lymphoma Consortium Study: cHOD17
St. Jude Children's Research Hospital
St. Jude Children's Research Hospital
Big Ten Cancer Research Consortium
Sunnybrook Health Sciences Centre
UNC Lineberger Comprehensive Cancer Center
UNC Lineberger Comprehensive Cancer Center
Memorial Sloan Kettering Cancer Center
Ohio State University Comprehensive Cancer Center
City of Hope Medical Center
German CLL Study Group
Dana-Farber Cancer Institute