RESULTS	The rate of reocclusion was related to the severity of the residual coronary artery stenosis at 4 weeks ( < 50 % stenosis 9.2 % ; 50 % to 69 % stenosis 11.6 % ; 70 % to 89 % stenosis 30.4 % ; > or = 90 % stenosis 70 % , p < 0.01 ) .\