1. Current concepts for a drug-induced inhibition of formation and action of thromboxane A₂

   • H. Patscheke

   Leading article Pages: 261 - 268

2. Interleukin-4

   • J. H. Jansen
   • W. E. Fibbe
   • J. C. Kluin-Nelemans

   Leading article Pages: 269 - 274

3. Vitamin K prophylaxis in the newborn

   • A. H. Sutor
   • U. Göbel
   • G. Landbeck

   Meeting report Pages: 275 - 277

4. Comparison of five methods for concentrating progenitor cells in human marrow transplantation

   • A. Dragani
   • A. Angelini
   • G. Torlontano

   Original article Pages: 278 - 281

5. Restoration of nonclonal hematopoiesis in chronic myelogenous leukemia with interferon alpha

   • G. Egert
   • L. Kanz
   • A. A. Fauser

   Original article Pages: 282 - 286

6. Sensitivity of chronic myeloid leukemia hemopoietic progenitors to PTT-119 in combination with human recombinant interferon alpha and gamma

   • G. Visani
   • R. M. Lemoli
   • S. Tura

   Original article Pages: 287 - 290

7. Electron microscopy: A contribution to further classification of acute unclassifiable childhood leukemia

   • E. R. van Wering
   • P. Brederoo
   • M. B. van't Veer

   Original article Pages: 291 - 296

8. Cytotoxic and stimulatory effects of antilymphocyte globulin (ALG) on hematopoiesis

   • Y. Kawano
   • C. Nissen
   • B. Speck

   Original article Pages: 297 - 300

9. Detection of urinary glycoprotein GP 41 in leukemic patients and in healthy donors

   • W. Gebauer
   • T. Lindl

   Original article Pages: 301 - 303

10. HIV prevalence in blood donors in urban and in rural areas of the Federal Republic of Germany

    • D. Glück
    • A. Vornwald
    • B. Kubanek

    Original article Pages: 304 - 307

11. Book review

    • W. Wilmanns

    BookReview Pages: 308 - 308