ACE and type 2 diabetes mellitus: 38 Nikzamir Nikzamir A A Rashidi Rashidi A A Esteghamati Esteghamati A A Nakhjavani Nakhjavani M M Golmohammadi Golmohammadi T T Khalilzadeh Khalilzadeh O O The relationship between ACE gene insertion/deletion polymorphism and diabetic retinopathy in Iranian patients with type 2 diabetes.