Can quantum mechanics be considered as statistical? an analysis of the   PBR theorem
  The answer to this question is `yes it can!' as we will see in this manuscript. More, precisely after a discussion of M. F. Pusey, J. Barrett and T. Rudolph (PBR) result (arXiv:1111.3328) we will show that contrarily to the PBR claim the epistemic approach is in general not disproved by their `no-go' theorem. 
Aurelien Drezet
quant-ph physics.hist-ph