1. Department of Clinical Dentistry, University of Bergen, Bergen, Norway
2. Adult Stem Cell Research Group, Faculty of Medicine and Life Sciences and BioMediTech Institute, University of Tampere, Tampere, Finland
3. Department of Fiber and Polymer Technology, Royal Institute of Technology (KTH), Stockholm, Sweden
4. RISE PFI, Trondheim, Norway
5. Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway