1. Exploration of an interaction threshold for the joint toxicity of trichloroethylene and 1,1-dichloroethylene: utilization of a PBPK model

   • Hisham A. El-Masri
   • John D. Tessari
   • Raymond S. H. Yang

   Original Investigation Pages: 527 - 539

2. Biochemical and morphological characterization of carbon tetrachloride-induced lung fibrosis in rats

   • Paavo Pääkkö
   • Sisko Anttila
   • Lasse Ryhänen

   Original Investigation Pages: 540 - 552

3. Distribution and induction of aflatoxin B₁-9a-hydroxylase activity in rat liver parenchymal and non-parenchymal cells

   • M. Gemechu-Hatewu
   • K. -L. Platt
   • P. Steinberg

   Original Investigation Pages: 553 - 558

4. Purification and characterization of a new glutathioneS-transferase, class δ, from human erythrocytes

   • Klaus R. Schröder
   • Ernst Hallier
   • Hermann M. Bolt

   Original Investigation Pages: 559 - 566

5. An attempt to define a just detectable effect for airborne chemicals on the respiratory tract in mice

   • Lee Ann Boylstein
   • Jier Luo
   • Yves Alarie

   Original Investigation Pages: 567 - 578

6. Determination of urinary 2-mercaptobenzothiazole (2-MBT), the main metabolite of 2-(thiocyanomethylthio)benzothiazole (TCMTB) in humans and rats

   • Alli Manninen
   • Seppo Auriola
   • Markku Pasanen

   Original Investigation Pages: 579 - 584

7. Effects of paraquat on mitochondrial electron transport system and catecholamine contents in rat brain

   • Toshinaga Tawara
   • Tetsuhito Fukushima
   • Yosuke Yamane

   Original Investigation Pages: 585 - 589