Diabetes duration may modify the association between genetic variation in the glycoprotein Ia subunit of the platelet collagen receptor and risk of severe diabetic retinopathy: a working hypothesis. - Reiner,A.P.; Agardh,E.; Teramura,G.; Gaur,P.; Gaur,L.K.; Agardh,C.D. (Thromb Haemost, 2003)