The Malmo polymorphism of coagulation factor IX, an immunologic polymorphism due to dimorphism of residue 148 that is in linkage disequilibrium with two other F.IX polymorphisms
Graham JB, Lubahn DB, Lord ST, Kirshtein J, Nilsson IM, Wallmark A, Ljung R, Frazier LD, Ware JL, Lin SW, Et al. The Malmo polymorphism of coagulation factor IX, an immunologic polymorphism due to dimorphism of residue 148 that is in linkage disequilibrium with two other F.IX polymorphisms. Am J Hum Genet. 1988; 42(4):573 - 580.