Preimplantation factor reduces graft-versus-host disease by regulating immune response and lowering oxidative stress (murine model) - Azar, Y; Shainer, R; Almogi-Hazan, O; Bringer, R; Compton, S R; Paidas, M J; Barnea, E R; Or, R (Biol Blood Marrow Transpl, 2013)