[R] Question about nlmer

[ctu at bigred.unl.edu]

Hi R user,
I have a question about "nlmer". Can I specify the multilevel random  
effects in the the nlmer? For example, level 1 is "hospital" and level  
2 is patient, so

nlmer(response~SSfol(Dose,Time,lke,lka,lcl)~(lke+lka+lcl|hospital)~(lke+lka+lcl|patient%in%hospital), data=health,  
start=c(lke=-2.5,lka=0.5,lcl=-3),verb=1))

I can do it in the nlme but I still don't know how to get it in nlmer!

many thanks in advance

Chunhao