【求助】各位SAS高手,请教sas生存曲线修改、美观

程序是ods graphics on/ width=8.5cm;
ods html file="survival1.html" gpath="E:\" image_dpi=600 style=statistical;
proc format;
value Rc 1='Reduction≥50%' 2='Reduction 20%-49.9%' 3='Reduction <20%';
proc lifetest data=survival1 intervals=10 to 90 by 10 PLOTS=(S);
time T * Status(1);
format group Rc.;
label T='Time(d)';
strata group;
run;
各位SAS大大,不知道怎样变为下列的生存曲线图?(group换个地方,去掉方框)
