Tissue levels of radioactivity in the liver, kidney and colon. (A) Total radioactivity in whole organs, (B) total radioactivity per 100 mg tissue, (C) tissue bound radioactivity in whole organs, (D) tissue bound radioactivity per 100 mg in controls, cholestatic, and cirrhotic rats. Significance levels are denoted by *p<0.05, **p<0.01, ***p<0.001.