1. School of Dentistry Biohealth Research Institute (Ibs.Granada) University of Granada Granada Spain
2. Endocrinology and Nutrition Department Cadiz Biomedical Research and Innovation Institute (INiBICA) Puerta del Mar University Hospital Cádiz Spain
3. Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London UK
4. WHO Collaborating Centre for Oral Cancer London UK