1. “Masked” Ph¹-chromosome in chronic myelogenous leukaemia (CML)

   • Ram S. Verma
   • Harvey Dosik

   Leading Article Pages: 129 - 133

2. Impaired in vitro growth of PHA induced T lymphocyte colonies in hemodialyzed renal failure patients

   • Riccardo Ghio
   • Enrico Haupt
   • Piero Boccaccio

   Original Articles Pages: 135 - 140

3. The effect of low-dose estroprogestinic preparations on prothrombin complex factors: No significant increase after an 8-month trial

   • A. Girolami
   • M. Procidano
   • T. Vicari

   Original Articles Pages: 141 - 148

4. Effect of chemotherapy on T-lymphocyte subsets in B-cell proliferative disorders

   • C. A. Emmendörffer
   • W. J. Pichler

   Original Articles Pages: 149 - 156

5. Surface glycoproteins (S-GP) on normal and malignant human leukocytes

   • E. Leiter
   • R. Pfister
   • Ch. Huber

   Original Articles Pages: 157 - 168

6. Determination of maximal bactericidal activity in human granulocytes

   • H. Hülsheger
   • W. Stangel
   • J. Potel

   Original Articles Pages: 169 - 178

7. Growth of erythroid colonies in agar cultures of normal human bone marrow

   • R. D. Barr
   • Marijke Koekebakker
   • Carol. A. Rand

   Short Communication Pages: 179 - 183

8. ICSH/ICTH recommendations for reporting prothrombin time in oral anticoagulant control

   • International Committee for Standardization in Haematology
   • International Committee on Thrombosis and Haemostasis

   Announcement Pages: 185 - 187

9. Book reviews

   • E. Kleihauer
   • M. Hundeiker

   BookReview Pages: 189 - 189

10. Congresses

    Events Pages: 190 - 190