test(){
cfMicro(A1,Cl/V)
    dosepoint(A1)
    C = A1 / V
    error(CEps=1)
    observe(CObs=C + CEps)
    stparm(V = tvV * exp(nV))
    stparm(Cl = tvCl * exp(nCl))
    fixef( tvV = c(,16,))
    fixef( tvCl = c(,41,))
    ranef(diag(nV,nCl) =  c(1,1))
}
