1. QOPNA, Mass Spectrometry Center, Department of Chemistry; University of Aveiro; Portugal
2. Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine; Boston University; Boston MA USA
3. Department of Periodontology, Henry M. Goldman School of Dental Medicine; Boston University; Boston MA USA
4. School of Health Sciences; University of Aveiro; Portugal
5. Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine; University of Porto; Porto Portugal