high concentrations of specific binding sites for iodoinsulin were present in the choroid plexus of the lateral ( 26.9 +/- 2.0 x 10 ( -3 ) fmol/mm2 ) , fourth ( 18.3 +/- 3.0 x 10 ( -3 ) fmol/mm2 ) , and third ( 13.2 +/- 1.5 x 10 ( -3 ) fmol/mm2 ) ventricles ( insulin binding is expressed per unit area of autoradiographic image ) .
C0008524
choroid plexus
C0007799
ventricles