A: MBF at rest and during stress in patients with type 2 diabetes and in control subjects. B–D: MBF at rest and during stress in patients with type 2 diabetes with and without various diabetes complications: albuminuria (B), autonomic neuropathy (ANP) (C), and retinopathy (D). E: Correlation between MBF during stress and myocardial ECV in patients with type 2 diabetes.