Intensive insulin therapy prevents the progression of diabetic microvascular complications in Japanese patients with non-insulin-dependent diabetes mellitus: a randomized prospective 6-year study. - Ohkubo,Y.; Kishikawa,H.; Araki,E.; Miyata,T.; Isami,S.; Motoyoshi,S.; Kojima,Y.; Furuyoshi,N.; Shichiri,M. (Diabetes Res Clin Pract, 1995)