Renin-angiotensin and kallikrein-kinin systems in diabetic retinopathy Journal title: Scripta Medica (Banja Luka) Authors: Rajko Igić Subject(s): Medicine, Research & Experimental, Medicine, General & Internal, Pharmacology & Pharmacy, Critical Care Medicine, Radiology, Nuclear Medicine & Medical Imaging, Dentistry, Oral Surgery & Medicine, Emergency Medicine