Treatment Optimization for Children with De Novo and Relapsed Langerhans cell
Histiocytosis (LCH) as Part of the International Study LCH-IV

Deutsches Register für Langerhanszell Histiozytosen im Kinder- und Jugendalter

Michigan Acute Graft-versus-Host Disease International Consortium (MAGIC):
A Database and Biorepository
To prospectively collect HCT data, complications and outcomes pertinent to graft-versus-host disease from allogeneic HCT patients for future analysis
To prospectively collect and store blood for future analysis from allogeneic HCT patients.