- Diabetic either non-insulin or insulin-dependent (according to World Health Organization Report) on pharmacologic treatment (insulin or hypoglycaemic agents) for at least 1 month, and presented de novo coronary stenoses in 1,2 or 3 native vessels with symptoms or objective evidence of ischemia. Stenoses had to be amenable for stent implantation, with vessel size smaller than 4.0 mm (as assessed visually on angiography)