1. Increased acetone exhalation induced by metabolites of halogenated C₁ and C₂ compounds

   • J. G. Filser
   • P. Jung
   • H. M. Bolt

   Original Investigations Pages: 107 - 116

2. Reactions of vinyl chloride with RNA and DNA of various mouse tissues in vivo

   • Kerstin Bergman

   Original Investigations Pages: 117 - 129

3. Effect of a single oral dose of pp′DDT on the absorption of nutrients in vitro and on brush border enzymes in rat intestine

   • Pradeep K. Dudeja
   • Akhtar Mahmood

   Original Investigations Pages: 131 - 138

4. Dose-dependent excretion of DDE(1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene) in rats

   • Mitsuru Ando

   Original Investigations Pages: 139 - 147

5. The excretion of thallium (I)-ions into the gastrointestinal tract in situ of rats

   • C. H. Henning
   • W. Forth

   Original Investigations Pages: 149 - 158

6. Transfer of antimony and arsenic to the developing organism

   • G. B. Gerber
   • J. Maes
   • B. Eykens

   Original Investigations Pages: 159 - 168

7. Retinol (vitamin A) as a modifier of 2-aminofluorene and 2-acetyl-aminofluorene mutagenesis in the Salmonella/microsome assay

   • Leif Busk
   • Ulf G. Ahlborg

   Original Investigations Pages: 169 - 174

8. Reactivation of acetylcholinesterase inhibited by methamidophos and analogous (di)methylphosphoramidates

   • Leo P. A. de Jong
   • Gre Z. Wolring
   • Hendrik P. Benschop

   Original Investigations Pages: 175 - 183