What does NNR stand for?

What does NNR mean?

NNR	Neurorehabilitation and Neural Repair Community » Media
NNR	Natural Nitrate Reduction Academic & Science » Chemistry
NNR	Noworyta News Reader Computing » Software
NNR	Noworyta News Reader Internet
NNR	Noworyta News Reader Community » Media
NNR	Northwest Nonprofit Resources Community » Non-Profit Organizations
NNR	Nielsen Net Ratings Community » Media
NNR	Not necessary to return Medical » Physiology
NNR	New and Non-official Remedies Medical » Prescription