1. Publisher's announcement

   Announcement Pages: i - i

2. Cell substrates and world health

   Editorial Comment Pages: 111 - 112

3. Batch production and growth kinetics of hybridomas

   • Otto-Wilhelm Merten

   OriginalPaper Pages: 113 - 121

4. Subculture of rabbit articular chondrocytes within a collagen gel: growth and analysis of differentiation

   • Benoit Dewilde
   • Laurent Benel
   • Monique Adolphe

   OriginalPaper Pages: 123 - 132

5. CG Dinucleotides of class II MHC genes are mutation hot-spots

   • Roberto Gambari
   • Roberta Piva
   • Rafaella Barbieri

   OriginalPaper Pages: 133 - 138

6. Cytotoxicity of D-penicillamine in association with several heavy metals against cultured rabbit articular chondrocytes

   • Elisabeth Clain
   • Nicole Farjaudon
   • Monique Adolphe

   OriginalPaper Pages: 139 - 144

7. Variation of amino acid concentrations in the medium of HU β-IFN and HU IL-2 producing cell lines

   • R. Wagner
   • T. Ryll
   • J. Lehmann

   OriginalPaper Pages: 145 - 150

8. Establishment of Namalva cell lines which grow continuously in glutamine-free medium

   • Shinji Hosoi
   • Hiroyuki Mioh
   • Nobuo Fujiyoshi

   OriginalPaper Pages: 151 - 158

9. Egg yolk lipoprotein, a new supplement for the growth of mammalian cells in serum-free medium

   • Hiroki Murakami
   • Yuichi Okazaki
   • Hirohisa Omura

   OriginalPaper Pages: 159 - 169

10. High cell density perfusion culture of hybridoma cells recycling high molecular weight components

    • Yoshiharu Takazawa
    • Michiyuki Tokashiki
    • Hiroki Murakami

    OriginalPaper Pages: 171 - 178

11. Anin vitro model for the biological evaluation of dental materials using human periodontal ligament cells

    • Agatha M. Adams
    • J. V. Soames
    • R. F. Searle

    Technical Report Pages: 179 - 182

12. To the editor

    • John R. Yannelli
    • Ann Mrowca Bastin
    • Martin Jadus

    Brief Communication Pages: 183 - 184

13. Evolution of highly repeated DNA within the genusTriturus (Amphibia, Urodela)

    • Federico Cremisi
    • Robert Vignali
    • Giuseppina Barsacchi

    Paper Presented at the Symposium on Molecular Cytogenetics Pages: 185 - 188

14. Genomic organization of ribosomal DNA and related sequences inTriturus

    • Francesca Andronico
    • Stefania De Lucchini
    • Rocco Savino

    Paper Presented at the Symposium on Molecular Cytogenetics Pages: 189 - 190

15. Announcement

    Announcement Pages: 191 - 192

16. Calendar of events

    Events Pages: 193 - 193