1. 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Guimarães, Portugal.
2. ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal.
3. Bioengineering and Health Technologies Research Group, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom.