American Association of Blood Banks (AABB)
www.aabb.org
American Society of Hematology (ASH)
www.hematology.org
American Society for Histocompatibility and Immunogenetics (ASHI)
www.ashi-hla.org
American Society of Transplantation (AST)
www.a-s-t.org
Australasian & South East Asian Tissue Typing Association (ASEATTA)
www.aseatta.org.au
BloodCenter of Wisconsin
www.bloodctrwise.org
British Society for Histocompatibility and Immunogenetics (BSHI)
www.bshi.org.uk
Canadian Blood Services
www.bloodservices.ca
European Foundation for Immunogenetics (EFI)
www.efiweb.org
National Marrow Donor Program (NMDP)
www.marrow.org
South-Eastern Organ Procurement Foundation (SEOPF)
www.seopf.org
United Network for Organ Sharing (UNOS)
www.unos.org