Cytotoxicity of [²¹³Bi]J591 on LNCaP target cells.  Percent viable cells vs. varying activity concentrations of [²¹³Bi]J591 at three different drug specific activities are shown (0.06 Ci/g, open circle; 3.8 Ci/g, filled triangle; 6.4 Ci/g, filled diamond).  Conducted as described in the Materials and Methods section.