RESULTS	In patients assigned to receive stenting , the median size of the salvage index was 0.54 ( 25th and 75th percentiles , 0.29 and 0.87 ) , as compared with a median of 0.50 ( 25th and 75th percentiles , 0.26 and 0.82 ) in the group assigned to receive PTCA ( p = 0.20 ) .\