1 School of Medicine, Department of Medicine and Surgery, University of Salerno, Salerno, Italy. Electronic address: mvpolito@hotmail.it.
2 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: ameliaravera@alice.it.
3 School of Medicine, Department of Medicine and Surgery, University of Salerno, Salerno, Italy. Electronic address: ralphlittletit@hotmail.it.
4 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: saverio.ferrara@sangiovannieruggi.it.
5 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: cesare.baldi@tiscali.it.
6 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: rodolfocitro@gmail.com.
7 School of Medicine, Department of Medicine and Surgery, University of Salerno, Salerno, Italy. Electronic address: marcodimaio88@gmail.com.
8 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: fvigorit@tiscali.it.
9 Department of Medicine, University Hospital "S. Giovanni Di Dio e Ruggi D' Aragona," Salerno, Italy. Electronic address: farirosa@tiscali.it.
10 School of Medicine, Department of Medicine and Surgery, University of Salerno, Salerno, Italy. Electronic address: fpiscione@unisa.it.