sections of tissues from the adrenal medullae of young rats were subjected to radioautography after a single intravenous injection of l-leucine 4 , 5 ( 3 ) h to identify the sites of synthesis and follow the migration of newly-formed proteins in both adrenaline-storing ( a ) and noradrenaline-storing ( n ) cells .
C0014563
adrenaline
C0028351
noradrenaline