the ultrastructure of the membranes of noradrenaline ( na ) and adrenaline ( a ) granules of the bovine adrenal medulla ( terland , o. , t. flatmark , and h. kryvi , biochim , biophys . acta 553 , 460 -- 468 ( 1979 ) ) was analyzed by transmission , negative staining and freeze-etch electron microscopy .
C0028351
noradrenaline
C0014563
adrenaline