"Extended" A1, B8, DR3 haplotype shows remarkable linkage disequilibrium but is similar to nonextended haplotypes in terms of diabetes risk.
Ide A, Babu SR, Robles DT, Wang T, Erlich HA, Bugawan TL, Rewers M, Fain PR, Eisenbarth GS. "Extended" A1, B8, DR3 haplotype shows remarkable linkage disequilibrium but is similar to nonextended haplotypes in terms of diabetes risk. Diabetes. 2005 Jun; 54(6):1879-83.