Studies of the relationship between the ENPP1 K121Q polymorphism and type 2 diabetes, insulin resistance and obesity in 7330 Danish white subjects. - Grarup,N.; Urhammer,S.A.; Ek,J.; Albrechtsen,A.; Glumer,C.; Borch-Johnsen,K.; Jorgensen,T.; Hansen,T.; Pedersen,O. (Diabetologia, 2006)