1. Editorial

   • Peter H. Wiernik
   • Peter Reizenstein

   EditorialNotes Pages: 1 - 1

2. The multiple drug resistance gene, MDR₁: Expression at the protein and RNA levels

   • Ya Qin Li
   • Venu Gopal
   • Harvey Preisler

   OriginalPaper Pages: 3 - 9

3. Antibody-directed therapy of multidrug-resistant tumor cells

   • Thomas Efferth
   • Manfred Volm

   OriginalPaper Pages: 11 - 19

4. Genetic aspects of multidrug resistance

   • Marc Pauly
   • Fernand Ries
   • Mario Dicato

   OriginalPaper Pages: 21 - 24

5. Diverse effect of cytokine treatment of tumor cells on specific versus non-specific cytotoxicity

   • H. Naganuma
   • E. Halapi
   • R. Kiessling

   OriginalPaper Pages: 25 - 33

6. Production of prostaglandin e by squamous carcinoma of the head and neck and adenocarcinoma of gastrointestinal tissue

   • F. ČULO
   • I. Klapan
   • B. Bakula

   OriginalPaper Pages: 35 - 39

7. Prognostic significance of cytochemical analysis of leukemic M2 blasts

   • Mirna SuČIĆ
   • Dubravka Boban
   • Boris Labar

   OriginalPaper Pages: 41 - 45

8. Leukemic progression as process of adaptation (theoretical model)

   • Igor V. Alekseyev

   OriginalPaper Pages: 47 - 50

9. Bone marrow cells in the DNA-synthesis-phase in the myelodysplastic syndrome and lymphome

   • Anne-Marie Wenthzel
   • Anja Porwit
   • Peter Reizenstein

   OriginalPaper Pages: 51 - 55