1. Center of Excellence on Aging (CeSI-Met), Institute of Cardiology, ‘G. d’Annunzio’ University, Via L. Polacchi, Chieti Scalo (Chieti), Italy
2. National Research Council (CNR), Department of Biomedical sciences, Institute of Clinical Physiology, Via Monteroni, Lecce, Italy
3. Institute of Cardiology, University of Pisa, C/o Ospedale di Cisanello, Via Paradisa, 2, Pisa, Italy