Danish Stem Cell Donors performs searches for unrelated donors and CBU for Danish patients on behalf of the 2 transplant centers in Denmark. Both transplant centers work according to a national guideline for allogeneic stem cell transplantation. This guideline sets standards for patient criteria and donor selection. The guideline is revised annually by experts from the Danish Society of Hematology and the Danish Society of Clinical Immunology. The guideline is available on-line on https://www.hematology.dk/index.php/vejledninger/knoglemarvstransplantation (in Danish). English translation of specific paragraphs are available on request.