1. http://www.ncbi.nlm.nih.gov/mapview/maps.cgi?TAXID=9606&CHR=6&MAPS=ideogr[0.00:10100.00]
2. http://www.ebi.ac.uk/imgt/hla
3. www.worldmarrow.org
4. HLA match likelihoods for hematopoietic stem-cell grafts in the U.S. registry;Gragert;N Engl J Med,2014
5. Peripheral-blood stem cells versus bone marrow from unrelated donors;Anasetti;N Engl J Med,2012