Belousov, A. ., O’Hara, B. ., & Denisova, J. . (2001). Acetylcholine becomes the major excitatory neurotransmitter in the hypothalamus in vitro in the absence of glutamate excitation. The Journal of Neuroscience : The Official Journal of the Society for Neuroscience, 21(6), 2015-27. Retrieved from http://www.jneurosci.org/cgi/pmidlookup?view=long&pmid=11245685 (Original work published 2001)