Is there a uniqueness and existence result for solutions to systems of Stochastic Differential Equations of diffusion type where coefficients are $\mathcal F_t$-measurable, i.e., could depend on the entire trajectories of processes up to time $t$? $$dX_t=a_tdt+b_tdW_t, X_t \in \mathbb R^n$$ where $a_t, b_t$ are of appropriate dimensions and $\mathcal F_t$-measurable.
Most textbooks (e.g., Oksendal) provide theorems only for the cases when coefficients depend on the time $t$ values of stochastic processes, that is, $dX_t=a(t,X_t)dt+b(t,X_t)dW_t$.