1. Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
2. IACCHOS, Université catholique de Louvain, Louvain-la Neuve, Belgium
3. Estonian Institute for Population Studies, Tallinn University, Tallinn, Estonia
4. Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Sassari, Italy
5. Department of Medicine, Baylor College of Medicine, Houston, TX, USA
6. Dipartimento di Medicina, Chirurgia e Farmacia, University of Sassari, Sassari, Italy
7. Sardinia Longevity Blue Zone Observatory, Ogliastra, Italy