1. Training in medical oncology

   • H. J. Tagnon

   Memorial Pages: 119 - 122

2. The relation of gene control mechanisms to cancer

   • H. Busch

   Editorial Pages: 123 - 135

3. Evaluation of continuous labelling data by a practical mathematical method with application to a virus-induced sarcoma of the rat

   • W. Lang
   • H. Herrmann
   • A. Georgii

   Original Papers Pages: 137 - 145

4. Effect of immunosuppression on the growth of six murine tumors

   • K. Pavelič
   • I. Hršak

   Original Papers Pages: 147 - 156

5. Carcinogen-induced DNA repair in nucleotide-permeable escherichia coli cells

   • H. W. Thielmann
   • H. Gersbach

   Original Papers Pages: 157 - 176

6. The nucleotide-permeable escherichia coli cell, a sensitive DNA repair indicator for carcinogens, mutagens, and antitumor agents binding covalently to DNA

   • H. W. Thielmann
   • H. Gersbach

   Original Papers Pages: 177 - 214

7. A note on the use of nitrate fertilizers in a high-risk geographical area for stomach cancer

   • R. Zaldívar

   Short Communications Pages: 215 - 216

8. Carcinogenicity of 4-chloronitrosopiperidine in Sprague-Dawley rats

   • W. Lijinsky
   • H. W. Taylor

   Short Communications Pages: 217 - 220