1. Rifampicin as cytotoxic agent for cholangiocarcinoma: preliminary report of seven cases

   • Avni Sali
   • Trevor McQuillan
   • Gabriel Kune

   Rapid Communication Pages: 503 - 504

2. Cancer of unknown primary site

   • J. E. Ultmann

   Guest Editorial Pages: 505 - 509

3. Rapid detection of proliferating potential in human brain tumors by nucleolar organizer region staining on squash preparations

   • Akira Hara
   • Noboru Sakai
   • Hideki Mori

   Original Papers Pages: 510 - 514

4. Development of serum-free media for the growth of human gastrointestinal adenocarcinoma xenografts as primary tissue cultures

   • Karimullah A. Zirvi

   Original Papers Pages: 515 - 518

5. A human leukemia cell line made resistant to two folate analogues, trimetrexate andN ¹⁰-propargyl-5,8-dideazafolic acid (CB3717)

   • Yuzuru Takemura
   • Takao Ohnuma
   • Susumu Sekiguchi

   Original Papers Pages: 519 - 525

6. Pineal melatonin inhibition of tumor promotion in theN-nitroso-N-methylurea model of mammary carcinogenesis: potential involvement of antiestrogenic mechanisms in vivo

   • David E. Blask
   • Diane B. Pelletier
   • Mark E. Wise

   Original Papers Pages: 526 - 532

7. Tumorigenicity, invasion, and metastasis of human gastric cancer in nude mice

   • Sonshin Takao
   • Hisaaki Shimazu
   • Takashi Aikou

   Original Papers Pages: 533 - 538

8. Karyotypic change from heteroploidy to near diploidy associated with development of cisplatin resistance in a rat ovarian tumour cell line

   • G. Chen
   • K. -J. Hutter
   • W. J. Zeller

   Original Papers Pages: 539 - 542

9. Influence of recombinant tumour necrosis factor a on blood flow and antibody localisation in human tumour xenografts in nude mice

   • M. V. Pimm
   • S. J. Gribben
   • T. M. Morris

   Original Papers Pages: 543 - 548

10. Inhibition ofO ⁶-alkylguanine-DNA alkyltransferase and DNase I activities in vitro by some alkylating substances and antineoplastic agents

    • A. Link
    • K. Tempel

    Original Papers Pages: 549 - 555

11. Prostatic atrophy in dogs after intravenous administration of a ureido-ethylimidazoline derivative (CGP15′720A)

    • Peter M. Kanter
    • Gary A. Bullard
    • Zlatko P. Pavelic

    Original Papers Pages: 556 - 560

12. Killing of burkitt-lymphoma-derived daudi cells by ultraviolet-inactivated vaccinia virus

    • Leora Grunwald-Beard
    • Haim Gamliel
    • Zichria Zakay-Rones

    Original Papers Pages: 561 - 567

13. The heterogeneity of solid human xenotransplant tumours

    • W. Wagner

    Original Papers Pages: 568 - 574

14. Effects of an androgenic derivative on pre-established mammary tumours chemically induced in the rat

    • E. Escrich
    • T. Ribalta
    • S. Saez

    Original Papers Pages: 575 - 582

15. Proliferation-associated nuclear antigen p105 as a marker for metastasis of human gastric cancer

    • Shigekazu Ohyama
    • Yutaka Yonemura
    • Takuma Sasaki

    Original Papers Pages: 583 - 586

16. Production of interleukin-1β and tumour necrosis factor-α in patients with benign or malignant ovarian tumours

    • Juha Punnonen
    • Pentti K. Heinonen
    • Reijo Punnonen

    Original Papers Pages: 587 - 592

17. Oestrogen-regulated 24-kDa protein — a marker for breast carcinoma in benign breast tissue

    • S. P. Courtney
    • Susan Williams
    • R. E. Mansel

    Original Papers Pages: 593 - 596

18. Effects of radiation fractionation on four squamous cell carcinoma lines with dissimilar inherent radiation sensitivity

    • K. Pekkola-Heino
    • J. Kulmala
    • R. Grenman

    Original Papers Pages: 597 - 602

19. Genomic alterations of the c-myc protooncogene in relation to the overexpression of c-erbB2 and Ki-67 in human breast and cervix carcinomas

    • P. Münzel
    • D. Marx
    • K. W. Bock

    Original Papers Pages: 603 - 607

20. Histological and immunohistochemical findings of prostatic carcinoma after external or interstitial radiotherapy

    • Burkhard Helpap
    • Volker Koch

    Original Papers Pages: 608 - 614

21. The role of insulin-related substance in Hodgkin's disease

    • T. Čabrijan
    • S. Levanat
    • K. Pavelić

    Original Papers Pages: 615 - 619

22. Increased proteinase expression during tumor progression of cell lines down-modulated for TIMP levels: a new transformation paradigm?

    • Rama Khokha
    • Paul Waterhouse
    • David T. Denhardt

    Erratum Pages: 620 - 620

23. Supplement II: Abstracts of the international symposium on Skin Carcinogenesis in man and in experimental models. Heidelberg, 29–31 October 1991 (pp S61–S88)

    • J. C. Barrett
    • C. A. Afshari
    • A. Faissner

    Abstract Pages: S61 - S83