coxph for survival analysis, how to get the estimated OS?

Question

[jlshi.nudt]

Hi, I am using R package "survival" do some survival analysis. I have got the cox model based on the coxph function. e.g. mode1<-coxph(res~a+b+c+d+e,data)

But how I get the estimated survival for 3 year or 5 year?

Thank you

[jlshi.nudt]

Oh, anyone knows that? thank you.