1. Biophysics Group, Biomedical Research Institute; Hasselt University; Agoralaan Building C 3590 Diepenbeek Belgium
2. Morphology Group, Biomedical Research Institute; Hasselt University; Agoralaan Building C 3590 Diepenbeek Belgium
3. Advanced Centre for Biochemical Engineering; University College London; Bernard Katz Building, Gordon Street London WC1H 0AH UK
4. Biomaterials & Tissue Engineering, UCL Eastman Dental Institute; University College London; 256 Gray's Inn Road London WC1X 8LD UK