1. 123 Stephens Green, Kearney Lab/Tissue Engineering Research Group, Dept. of Anatomy and Regenerative Medicine Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences Dublin 2 Ireland
2. Laboratório de Proliferação e Diferenciação Celular Instituto de Ciências Biomédicas (ICB) Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro 21941-902 RJ Brazil
3. Department of Diagnostic Sciences Tufts University School of Dental Medicine Boston MA 02111 USA
4. Trinity Centre for Bioengineering Trinity College Dublin (TCD) Dublin 2 Ireland
5. Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD Dublin 2 Ireland
6. Department of Biomedical Engineering University of Massachusetts Amherst Amherst MA 01003 USA