Kang K, Park C, Choue RW, Ahn H, Jang IS, Cho JS, Shin KS, Huh Y.  The Expressional Changes of Nicotinamide Adenine Dinucleotide Phosphate-Diaphorase and Neuronal Nitric Oxide Synthase in the Rat Cerebral Cortex and Hypothalamus during Food Restriction.  Exp Neurobiol 2003;12:105-109.