1. Natural killer cells in mice and man and their possible biological significance

   • Eva Lotzová
   • K. B. McCredie

   Short Review Pages: 215 - 221

2. Evolutionary development of IgE and the role of anaphylactic-type reactions in resistance to solid tumours

   • N. R. Lynch
   • J.-C. Salomon
   • K. J. Turner

   Short Review Pages: 223 - 228

3. Therapeutic application of various immunostimulators on the L₂C guinea-pig leukemia

   • D. L. Klein
   • W. Brown
   • J. W. Pearson

   Original Article Pages: 229 - 237

4. Effects of immunotherapy and chemotherapy on immunocompetence. A study of patients with acute myeloblastic leukemia in remission

   • Ann-Mari Udén
   • Christina Lindemalm
   • Anne-Marie Sjögren

   Original Article Pages: 239 - 245

5. Generation of new macrophages after injection of killed Brucella abortus organisms

   • J. Amice
   • L. Dazord
   • L. Toujas

   Original Article Pages: 247 - 250

6. Plasma carcinoembryonic antigen versus plasma calcitonin in the diagnosis of medullary carcinoma of the thyroid

   • C. Calmettes
   • M. S. Moukhtar
   • G. Milhaud

   Original Article Pages: 251 - 256

7. In vivo and in vitro lysis of mouse cancer cells by antimetastatic effectors in normal plasma

   • Jan Vaage

   Original Article Pages: 257 - 261

8. Local cellular responses associated with dormancy and regression of a syngeneic C3H mammary carcinoma

   • Jan Vaage
   • Lalita Gandbhir

   Original Article Pages: 263 - 268

9. Untoward fatal hemorrhagic diathesis in a BCG-treated melanoma patient

   • J. A. Stein
   • M. Siletzki-Ciechanover
   • D. Michaeli

   Letter To The Editor Pages: 269 - 270