the binding of [ 3h ] [ d-ala2 , mephe4 , gly-ol5 ] enkephalin ( [ 3h ] dago ) , [ 3h ] d-ala2 , d-leu5 ] enkephalin ( [ 3h ] dadle ) and ( +/- ) - [ 3h ] ethylketocyclazocine ( [ 3h ] ekc ) to neurotumor tissues derived from s20y neuroblastoma cells transplanted into a/jax mice was examined .
C0525773
dago
C0014298
enkephalin