1. Multicellular spheroids

   • Wolfgang Mueller-Klieser

   Guest Editorial Pages: 101 - 122

2. Tumor promoting activity of teleocidin in skin and forestomach of mice initiated transplacentally with 7,12-dimethylbenz(a)anthracene

   • M. Suganuma
   • H. Fujiki
   • T. Sugimura

   Original Papers Pages: 123 - 125

3. Targeting of neoglycoprotein-drug conjugates to cultured human embryonal carcinoma cells

   • Hans-J. Gabius
   • Carsten Bokemeyer
   • Hans-J. Schmoll

   Original Papers Pages: 126 - 130

4. Metabolic denitrosation of diphenylnitrosamine: a possible bioactivation pathway

   • K. E. Appel
   • S. Görsdorf
   • A. G. Hildebrandt

   Original Papers Pages: 131 - 136

5. Early changes in the arachidonic acid metabolism of HeLa cells in response to the tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA) and related compounds

   • U. Espe
   • G. Fürstenberger
   • V. Kinzel

   Original Papers Pages: 137 - 144

6. Differential effects of 4-iodopyrazole and 3-methylpyrazole on the metabolic activation of methylazoxymethanol to a DNA methylating species by rat liver and rat colon mucosa in vivo

   • Emerich S. Fiala
   • Ock Soon Sohn
   • Richard Czerniak

   Original Papers Pages: 145 - 150

7. Anti-tumour effect of α-amino N-substituted-pyrrolidin-2,5-dione-N-mustards on the growth of P388 lymphocytic leukaemia

   • Satish D. Naik
   • Ramkrishna Y. Ambaye
   • Shreekant V. Gokhale

   Original Papers Pages: 151 - 154

8. Posttranslational modifications of the cytochrome P-450 monooxygenase system

   • W. Pyerin
   • F. Horn
   • H. Taniguchi

   Original Papers Pages: 155 - 159

9. Influence of mesna and cysteine on the systemic toxicity and therapeutic efficacy of activated cyclophosphamide

   • T. Wagner
   • M. Zink
   • G. Schwieder

   Original Papers Pages: 160 - 165

10. Reversal of defective lymphoproliferation in postoperative patients with colon cancer

    • L. Schindler
    • M. Leroux
    • H. Kirchner

    Original Papers Pages: 166 - 170

11. DNA repair synthesis in fibroblast strains from patients with actinic keratosis, squamous cell carcinoma, basal cell carcinoma, or malignant melanoma after treatment with ultraviolet light, N-acetoxy-2-acetyl-aminofluorene, methyl methanesulfonate, and N-methyl-N-nitrosourea

    • Heinz Walter Thielmann
    • Lutz Edler
    • Ernst Gustav Jung

    Original Papers Pages: 171 - 186

12. Prognostic significance of tumor volume in localized Ewing's sarcoma of bone in children and adolescents

    • V. Göbel
    • H. Jürgens
    • U. Göbel

    Original Papers Pages: 187 - 191

13. Chromosomal abnormalities in adult T-cell leukemia/lymphoma (ATL)

    • R. S. Verma
    • M. J. Macera
    • H. Dosik

    Original Papers Pages: 192 - 196

14. Energy-dispersive, bulk specimen X-ray microanalytical measurement of the intracellular Na⁺/K⁺ ratio in human laryngeal tumors

    • I. Zs. -Nagy
    • L. Tóth
    • I. Lampé

    Original Papers Pages: 197 - 202