by employing a combination of the immunohistochemistry for rat corticotropin-releasing factor ( rcrf ) and retrograde tracing with biotinylated wheat germ agglutinin ( b-wga ) injected into the posterior pituitary ( group 1 ) or into the middle portion of the median eminence ( group 2 ) , functionally different populations of crf neurons were identified in the rat hypothalamus .
C0010132
corticotropin-releasing factor
C0020663
hypothalamus