1. Blood lead level distribution by by age group in Japanese

   • Yasushi Kodama
   • Koji Matsuno
   • Noburu Ishinishi

   Original Articles Pages: 1 - 9

2. Dietary selenium status and plasma thyroid hormones in chicks

   • L. S. Jensen
   • G. L. Colnago
   • Y. Akiba

   Original Articles Pages: 11 - 18

3. Effects of CuDIPS and tween 80 on SJL/J tumorigenesis

   • Charles G. Crispens
   • Philip S. Porter
   • John R. J. Sorenson

   Original Articles Pages: 19 - 24

4. Effect of valproate on zinc metabolism in fetal and maternal rats fed normal and zinc-deficient diets

   • Jürgen Vormann
   • Vera Höllriegl
   • Theodor Günther

   Original Articles Pages: 25 - 35

5. Changes in organ nonprotein sulfhydryl and glutathione concentrations during acute and chronic administration of inorganic lead to chicks

   • Claude McGowan
   • W. E. Donaldson

   Original Articles Pages: 37 - 46

6. The fate of Cd, Cu, Ca, Zn, and Fe in rat during the recovery period following cessation of repeated exposure to Cd

   • Elizabeth Komsta-Szumska
   • Margaret Czuba

   Original Articles Pages: 47 - 63

7. Effects of excess dietary selenite on lead toxicity in sheep

   • H. F. Mayland
   • J. J. Doyle
   • R. P. Sharma

   Original Articles Pages: 65 - 75

8. Announcements

   Announcement Pages: 77 - 78