radioactivity article 8 controlled study 6 nonhuman 6 Animals 4 animal experiment 4 animal tissue 4 2,4 dichlorophenol 2 2,4,5 trichlorophenol 2 3(or 17)beta hydroxysteroid dehydrogenase 2 Adrenal 2 Adrenal Glands 2 Aldosterone 2 Aminoglutethimide 2 Animalia 2 Bacterial Proteins 2 Bioaccumulation 2 Bioassay 2 Biological Assay 2 Biosynthesis 2 Biotransformation 2 Biotransformations 2 Bivalvia 2 Break-up 2 Carbohydrates 2 Carbon Radioisotopes 2 Cellulose 2 Chironomus riparius 2 Chlorophenols 2 Cholesterol 2