The effect of L-arginine and its antagonist L-NAME and Methylene blue on sensory and cognitive function in mice: Farid J. Al-Tahan , Muhannad A. A. Al-Bayati and Salma J. Askar. Iraqi J. Vet. Med. 2012;36(1):99-106. doi:10.30539/iraqijvm.v36i1.553