Afferent projections to the rat locus coeruleus demonstrated
by retrograde and anterograde tracing with cholera-toxin B subunit and
Phaseolus vulgaris leucoagglutinin
Luppi P.H., Aston-Jones G., Akaoka H., Chouvet and Jouvet M.
Neuroscience (1995) Vol:65 Tome:1 pp:119-160
Photomicrograph of a section only counterstained with neutral red adjacent
to that shown in A. Note that there is no trace of tissue necrosis in
the center of the injection site, although a blood vessel is localized
at this site.