1 Department of Experimental and Clinical Medicine, University of Florence, Italy; Section of Geriatric and Intensive Care Medicine, Careggi Hospital, Florence, Italy. Electronic address: giulia.rivasi@unifi.it.
2 Department of Experimental and Clinical Medicine, University of Florence, Italy; Section of Geriatrics, Città della Salute e della Scienza University Hospital, Turin, Italy. Electronic address: ebrunetti@cittadellasalute.to.it.
3 Section of Geriatrics, Città della Salute e della Scienza University Hospital, Turin, Italy; Department of Medical Sciences, University of Turin, Italy. Electronic address: roberto.presta@unito.it.
4 Department of Experimental and Clinical Medicine, University of Florence, Italy. Electronic address: niccolo.marchionni@unifi.it.
5 Department of Clinical, Internal, Anesthesiologic and Cardiovascular Sciences, University of Rome "Sapienza", Italy. Electronic address: giovambattista.desideri@uniroma1.it.
6 Section of Geriatrics, Città della Salute e della Scienza University Hospital, Turin, Italy; Department of Medical Sciences, University of Turin, Italy. Electronic address: mario.bo@unito.it.