1. Experimental toxicology of formaldehyde

   • H. M. Bolt

   Guest Editorial Pages: 305 - 309

2. Effects of the phorbolester TPA and of the ionophore A 23187 on phospholipase A₂ and C activities in the mouse epidermal cell line HEL-30

   • G. Fürstenberger
   • M. Rogers
   • F. Marks

   Original Papers Pages: 310 - 318

3. Stimulation of arachidonic acid metabolism in rat peritoneal macrophages by thapsigargin, a non-(12-O-tetradecanoylphorbol-13-acetate) (TPA)-type tumor promoter

   • Kazuo Ohuchi
   • Tadaki Sugawara
   • S. B. Christensen

   Original Papers Pages: 319 - 324

4. Basement membrane formation by malignant mouse keratinocyte cell lines in organotypic culture and transplants: correlation with degree of morphologic differentiation

   • J. Hornung
   • A. Bohnert
   • N. E. Fusenig

   Original Papers Pages: 325 - 341

5. Tumor inhibition by titanocene complexes: Influence upon two xenografted human lung carcinomas

   • P. Köpf-Maier

   Original Papers Pages: 342 - 348

6. Possible implications from results of animal studies in human risk estimations for benzene: nonlinear dose-response relationship due to saturation of metabolism

   • Sandro Grilli
   • Werner K. Lutz
   • Silvio Parodi

   Original Papers Pages: 349 - 358

7. Combined immunostimulation (Propionibacterium avidum KP 40) and anticoagulation (heparin) prevents metastatic lung and liver colonization in mice

   • J. Beuth
   • H. L. Ko
   • G. Pulverer

   Original Papers Pages: 359 - 362

8. Antitumor effect of i.p. dopamine in mice bearing Ehrlich ascites carcinoma

   • Partha Sarathi Dasgupta
   • Twisha Lahiri

   Original Papers Pages: 363 - 368

9. Cytostatic effects in osteosarcomas as detected by flow cytometric DNA analysis after preoperative chemotherapy according to the COSS 80/82 protocol

   • T. Bösing
   • A. Roessner
   • E. Grundmann

   Original Papers Pages: 369 - 375

10. Reversible arrhythmias observed in patients treated with recombinant alpha₂ interferon

    • Silvana Martino
    • Voravit Ratanatharathorn
    • Seth A. Rudnick

    Original Papers Pages: 376 - 378

11. Adenocarcinoma of the lung

    • M. Brockmann
    • I. Brockmann
    • K. -M. Müller

    Original Papers Pages: 379 - 382

12. Establishment of murine macrophage hybridoma clones capable of acquiring tumoricidal activity upon activation with recombinant interferon-γ and lipopolysaccharide

    • Chiharu Kiyotaki
    • Tatsuo Katagiri
    • Toshiyuki Hamaoka

    Original Papers Pages: 383 - 386

13. Increased cytotoxicity of 1-(2-chloroethyl)-1-nitroso-3(4-methyl)-cyclohexylurea by pretreatment with O⁶-methylguanine in resistant but not in sensitive human melanoma cells

    • Wolfram Dempke
    • Peter Nehls
    • Rainhardt Osieka

    Original Papers Pages: 387 - 391

14. Sarcomatous degeneration in Paget's bone disease

    • P. Seret
    • M. F. Basle
    • M. Audran

    Original Papers Pages: 392 - 399

15. A rapid and simple procedure for dissociation of tumor tissue from the human colon

    • W. Kemmner
    • P. Schlag
    • R. Brossmer

    Rapid Communication Pages: 400 - 401