RESULTS	Collateral flow index at the first occlusion was not different between the groups ( 0.15 + / - 0.10 in the adenosine group and 0.13 + / - 0.11 in the control group , p = NS ) , and it increased significantly and similarly to 0.20 + / - 0.14 and to 0.19 + / - 0.10 , respectively ( p < 0.01 ) during the third occlusion .\