specific binding levels in which the lower limit of the 99 % confidence interval was greater than zero were detected in choroid plexus , medial habenula , lateral mesencephalic nucleus , hippocampus , parahippocampal area , preoptic area and 4 hypothalamic sites : paraventricular nucleus , ventromedial nucleus , suprachiasmatic nucleus , and tuberal region .
C0020663
hypothalamic
C0038866
suprachiasmatic nucleus