displacement of [ 125i ] s6b by unlabeled ets and s6b showed that the concentrations needed to displace 50 % of the tracer were 0.03 nm for s6b , 0.06 nm for et-1 , 0.04 nm for et-2 , and 0.05 nm for et-3 .
C0079284
ets
C0079282
et-2