Regarding the short-term effective rate , there was no statistical significance in the total population ( n = 80 , 90 % vs. 75 % , P = .07 ) , but there was statistical significance in cases of positive VEGFR2 ( 93 % vs. 67.7 % , P = .012 ) or positive KDR gene ( 94.4 % vs. 47.3 % , P = .002 ) in both groups .