Diabetic retinopathy, promoter (4G/5G) polymorphism of PAI‐1 gene, and PAI‐1 activity in Pima Indians with type 2 diabetes. - Nagi,D.K.; McCormack,L.J.; Mohamed-Ali,V.; Yudkin,J.S.; Knowler,W.C.; Grant,P.J. (Diabetes Care, 1997)