1. Antibodies specific for DNA components structurally modified by chemical carcinogens

   • R. Müller
   • M. F. Rajewsky

   Guest Editorial Pages: 99 - 113

2. Detection of chemical carcinogens by assay of unscheduled DNA synthesis in rat tracheal epithelium in short-term organ culture

   • F. Ide
   • T. Ishikawa
   • S. Takayama

   Original Papers Pages: 115 - 126

3. Polycyclic aromatic hydrocarbons and possible metabolites: Convertogenic activity in yeast and tumor initiating activity in mouse skin

   • D. Siebert
   • H. Marquardt
   • E. Hecker

   Original Papers Pages: 127 - 139

4. Tumor production in the nude mouse, fibrinolytic activity and cross-reactivity with antimelanoma sera of various human tumor cell lines

   • J. Brüggen
   • J. Fogh
   • C. Sorg

   Original Papers Pages: 141 - 152

5. Investigation of the tumorigenic response to benzo(a)pyrene in aqueous caffeine solution applied orally to Sprague-Dawley rats

   • H. Brune
   • R. P. Deutsch-Wenzel
   • D. Schmähl

   Original Papers Pages: 153 - 157

6. Tissue connections in a transplantable virus-producing sebaceous adenoma of the mouse

   • Ch. Schöpper
   • H. Robenek
   • H. Themann

   Original Papers Pages: 159 - 167

7. Decreased rate of benzo(a)pyrene-induced sister chromatid exchange in fibroblast cultures from patients with lung cancer

   • H. W. Rüdiger
   • W. Harder
   • U. Schmidt-Preuß

   Original Papers Pages: 169 - 175

8. Sensitive three-parameter flow-cytometric detection of abnormal cells in human cervical cancers: A pilot study

   • G. Valet
   • M. G. Ormerod
   • G. Ruhenstroth-Bauer

   Original Papers Pages: 177 - 184

9. DNCB skin test in cases of malignant melanoma

   • F. Ehring
   • H. Loth

   Short Communications Pages: 185 - 187

10. Differential survival of cell subpopulations in spheroids after treatment with bleomycin

    • D. Tobüren

    Short Communications Pages: 189 - 193