Darrell W. Stafford

The Malmö 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.

S. W. Lin, D. Lubahn, S. Lord, 1988, American journal of human genetics.

Factor IXAlabama: a point mutation in a clotting protein results in hemophilia B.

J. Ware, L. Davis, R. McGraw, 1987, Blood.