PMID: 1360671
van Endert PM, Lopez MT, Patel SD, Monaco JJ, McDevitt HOGenomic polymorphism, recombination, and linkage disequilibrium in human major histocompatibility complex-encoded antigen-processing genes.
Proc Natl Acad Sci U S A. 1992 Dec 1;89(23):11594-7., [PubMed]