1. Dietrich Schmähl on the occasion of his 65th birthday

   • Ekkehard Grundmann

   Editorial Pages: 409 - 410

2. Basic principles in preclinical cancer chemotherapy

   • Norbert Brock
   • Jörg Pohl
   • Berthold Schneider

   Guest Editorial Pages: 411 - 424

3. Is the progress in cancer treatment results adequate or are we confronted with a more or less worldwide stagnation?

   • Karl Karrer

   Guest Editorial Pages: 425 - 430

4. Potentiation of cisplatin cytotoxicity by methylxanthines in vitro

   • E. Petru
   • G. Boike
   • B. U. Sevin

   Original Papers Pages: 431 - 433

5. Tumor-inhibiting [1,2-bis(fluorophenyl)ethylenediamine]platinum(II) complexes

   • Hans -Dieter vom Orde
   • Herta Reile
   • Albrecht Mannschreck

   Original Papers Pages: 434 - 438

6. D-19466, a new cyclobutane-platinum complex with antitumor activity

   • R. Voegeli
   • W. Schumacher
   • P. Hilgard

   Original Papers Pages: 439 - 442

7. In vitro investigations on induction and reversal of cisplatin resistance in a rat ovarian tumor cell line

   • G. Chen
   • W. J. Zeller

   Original Papers Pages: 443 - 447

8. Sacrosine- and prolinedithiocarbamate pretreatment increases the therapeutic efficacy of doxorubicin, methotrexate, teniposide, mitoxantrone or cyclohexylchloroethylnitrosourea in leukemia L1210

   • H. Osswald
   • N. Frank

   Original Papers Pages: 448 - 452

9. Sensitivity of rodent osteosarcoma clones to platinum-containing phosphonic acid complexes in vitro

   • T. Klenner
   • P. Valenzuela-Paz
   • H. R. Scherf

   Original Papers Pages: 453 - 458

10. Effects of antineoplastic phospholipids on parameters of cell differentiation in U937 cells

    • Christa Hochhuth
    • Dinko Berkovic
    • Detlef Doenecke

    Original Papers Pages: 459 - 466

11. The pharmacokinetic model and distribution pattern of new sexual-steroid-hormone-linked anticancer agents

    • B. Betsch

    Original Papers Pages: 467 - 469

12. Differential relationship of vitamin A and E levels in methylnitrosourea-induced Sprague-Dawley rats following prolonged feeding of fatty diets enriched with the vitamins

    • M. Aksoy
    • M. R. Berger

    Original Papers Pages: 470 - 474

13. Mutagenic and genotoxic activities of extracts derived from the cooked and raw edible mushroomAgancus bisporus

    • B. L. Pool-Zobel
    • P. Schmezer
    • A. R. Tricker

    Original Papers Pages: 475 - 479

14. Assessment of nucleolar organizer regions by automatic image analysis in breast cancer: correlation with DNA content, proliferation rate, receptor status and histopathological grading

    • Josef Rüschoff
    • Kurt Neumann
    • Carlos Thomas

    Original Papers Pages: 480 - 485

15. Value of bone scanning in the follow-up of breast cancer patients

    • H. Schünemann
    • P. J. Langecker
    • H. Merkl

    Original Papers Pages: 486 - 491

16. Down-regulation of androgen receptor by progestins and interference with estrogenic or androgenic stimulation of mammary carcinoma cell growth

    • Reinhard Hackenberg
    • Jürgen Hofmann
    • Klaus -Dieter Schulz

    Original Papers Pages: 492 - 498

17. The mutagenic activity of human breast secretions

    • W. N. Scott
    • W. R. Miller

    Original Papers Pages: 499 - 502

18. Phase II study of tamoxifen and high-dose retinyl acetate in patients with advanced breast cancer

    • Francesco Boccardo
    • Luciano Canobbio
    • Fulvio Brema

    Original Papers Pages: 503 - 506

19. Analysis of the cellular DNA and RNA content in acute leukemias by flow cytometry

    • W. Hiddemann
    • B. Wörmann
    • Th. Büchner

    Original Papers Pages: 507 - 512

20. Prognostic grouping: the next step in tumor classification

    • Paul Hermanek
    • Robert V. P. Hutter
    • Leslie H. Sobin

    Original Papers Pages: 513 - 516

21. The vascular architecture of human xenotransplanted tumors: histological, morphometrical, and ultrastructural studies

    • F. Steinberg
    • M. A. Konerding
    • C. Streffer

    Original Papers Pages: 517 - 524

22. Histocompatibility locus antigens (HLA) in the epidermoid type of lung carcinoma

    • J. Pražák
    • O. Měřička
    • J. Chytrý

    Original Papers Pages: 525 - 527