1. Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine; University of Pisa; Pisa Italy
2. Sub-Unit of Periodontology, Halitosis and Periodontal Medicine; University Hospital of Pisa; Pisa Italy
3. Interdepartmental Research Center “Nutraceuticals and Food for Health”; University of Pisa; Pisa Italy
4. Chemistry and Endocrinology Laboratory; University Hospital of Pisa; Pisa Italy
5. Department of Periodontology, Academic Centre for Dentistry of Amsterdam (ACTA); University of Amsterdam and VU University of Amsterdam; The Netherlands