1. Hemopoietic stem cells and target cells in murine-virus-induced leukemias

   • H. J. Seidel

   Guest Editorial Pages: 1 - 12

2. Carcinogenicity of N-alkyl-N-(acetoxymethyl)nitrosamines after subcutaneous injections in F-344 rats

   • A. Maekawa
   • T. Ogiu
   • S. Odashima

   Original Papers Pages: 13 - 21

3. Sensitization of clonogenic malignant cells to hyperthermia by glucose-mediated, tumor-selective pH reduction

   • E. Jähde
   • M. F. Rajewsky

   Original Papers Pages: 23 - 30

4. Biological assays for irritant tumor-initiating and -promoting activities

   • M. Hergenhahn
   • G. Fürstenberger
   • E. Hecker

   Original Papers Pages: 31 - 39

5. Classification of malignant lymphomas of the mouse using morphological, immunological, and cytochemical methods: A working proposal

   • G. R. F. Krueger
   • E. M. Meyer

   Original Papers Pages: 41 - 52

6. Effect of diazepam on microsomal diethylnitrosamine metabolism in gerbils

   • P. Conradt
   • U. Green

   Original Papers Pages: 53 - 61

7. Development and properties of malignant lymphoma induced by magnesium deficiency in rats

   • R. Averdunk
   • P. -H. Bippus
   • H. J. Merker

   Original Papers Pages: 63 - 73

8. Carcinogenic effect of low doses of nitrosopyrrolidine administered in drinking water to Syrian golden hamsters

   • M. B. Ketkar
   • P. Schneider
   • U. Mohr

   Original Papers Pages: 75 - 79

9. Tumor promoters specifically and reversibly disturb development and behavior of Caenorhabditis elegans

   • Johji Miwa
   • Yo Tabuse
   • Hiroshi Yamasaki

   Original Papers Pages: 81 - 87

10. Experimental chemotherapy with N′N′-bis(2-chloroethyl)-N-nitrosourea (BCNU) in autochthonous neurogenic tumors of the rat transplacentally induced by ethylnitrosourea

    • H. H. Fiebig
    • H. Strobel
    • D. Schmähl

    Original Papers Pages: 89 - 98

11. Biochemical correlation of glycogen content and activity of some enzymes of carbohydrate metabolism in rat liver during early stages of carcinogenesis

    • Doris Mayer
    • Malcolm Moore
    • Peter Bannasch

    Original Papers Pages: 99 - 108

12. The tumor-protective effect of selenium in an experimental model

    • Christian Witting
    • Ute Witting
    • Volker Krieg

    Original Papers Pages: 109 - 113

13. Chemotherapeutic studies on N-nitrosoacetoxymethyl-methylamine-and 1,2-dimethylhydrazine-induced colonic tumors in rats: Monotherapy with 5-fluorouracil, ftorafur, CGP 6809, and CGP 15'720A

    • I. Wagner
    • M. Habs
    • U. Bachmann

    Original Papers Pages: 115 - 131

14. A fetal respiratory epithelial cell line for studying some problems of transplacental carcinogenesis in Syrian golden hamsters

    • M. Emura
    • H. -B. Richter-Reichhelm
    • U. Mohr

    Original Papers Pages: 133 - 144

15. Particle-bound DNA polymerase activity in haematological disorders and normal controls

    • G. N. P. van Muijen
    • J. te Velde
    • S. O. Warnaar

    Original Papers Pages: 145 - 154

16. Mass screening for urinary tract cancer with urine cytology

    • Ryosuke Nemoto
    • Tetsuro Kato
    • Masafumi Kano

    Original Papers Pages: 155 - 159

17. Clinical data of Granulosa cell tumors

    • K. -W. Schweppe
    • F. K. Beller

    Original Papers Pages: 161 - 169

18. Biologic characterization of human bone tumors I. Ewing's sarcoma

    • A. Roessner
    • B. Voss
    • E. Grundmann

    Original Papers Pages: 171 - 180

19. “Activated” monocytes in gastric cancer patients

    • Wojciech Uracz
    • Anna Pituch-Noworolska
    • Antoni Czupryna

    Original Papers Pages: 181 - 190

20. Anticoagulant treatment of rats with Walker 256 carcinosarcoma

    • Charles A. Owen Jr.

    Short Communications Pages: 191 - 193

21. Adjuvant chemotherapy and venous thrombosis

    • M. Kaufmann
    • G. Lammers
    • F. Kubli

    Short Communications Pages: 195 - 196