1. Announcement

   Announcement Pages: i - i

2. The significance of biological heterogeneity

   • Harry Rubin

   OriginalPaper Pages: 1 - 20

3. Cellular interactions in metastasis

   • Fred R. Miller
   • Gloria H. Heppner

   OriginalPaper Pages: 21 - 34

4. Chromosomal abnormalities in human breast cancer

   • Wendy M. Mars
   • Grady F. Saunders

   OriginalPaper Pages: 35 - 43

5. The invasive phenotypes

   • Marc M. Mareel
   • Frans M. Van Roy
   • Patrick De Baetselier

   OriginalPaper Pages: 45 - 62

6. The current state of oncogenes and cancer: Experimental approaches for analyzing oncogenetic events in human cancer

   • Paul J. Chiao
   • Farideh Z. Bischoff
   • Michael A. Tainsky

   OriginalPaper Pages: 63 - 80

7. Tumor vaccines

   • Jean-Claude Bystryn

   OriginalPaper Pages: 81 - 91

8. Transformation injury and the unicellular phenotype of malignant cells

   • Philip Frost
   • Yuti Chernajovsky

   OriginalPaper Pages: 93 - 98