INS and type 2 diabetes mellitus: Insulin in μU/ml during low-insulin clamp: T2D 25 (23, 28) vs 25 (23, 33) vs 23 (21, 32); IR-NDM 20 (18, 33) vs 26 (20, 29) vs 22 (19, 30); IS-NDM 26 (21, 34) vs 26 (21, 29) vs 25 (20, 32)).