1.Henderson RA,Pocock SJ.Long‐term results of RITA‐1 trial:clinical and cost comparisons of coronary angioplasty and coro nary artery bypass grafting.Randomised Intervention Treatment of Angina.Lancet,1998,352:1419‐1425. 2.Serruys PW,Unger F,Sousa JE,et a ......