1 Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, Salerno, Italy. Electronic address: rmanara@unisa.it.
2 Department of Neuroscience, University of Padua, Padua, Italy.
3 Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, Salerno, Italy.