Rhythmic expression of clock genes in the ependymal cell layer of the third ventricle of rodents is independent of melatonin signaling.
Yasuo S, von Gall C, Weaver DR, Korf HW. Rhythmic expression of clock genes in the ependymal cell layer of the third ventricle of rodents is independent of melatonin signaling. Eur J Neurosci. 2008 Dec; 28(12):2443-50.