that is , group 1 : new myocardial revascularization in the patients for whom coronary artery bypass surgery can not be performed , because of small or diffuse coronary arteries , group 2 : laser vascular anastomosis especially for small-caliber vessels , group 3 : laser angioplasty for obstructive arterial disease .
C0010055
coronary artery bypass
C0205042
coronary arteries