[1] Univ Messina, Dept Clin & Expt Med, Messina, Italy
[2] AMD Fdn, Reggio Emilia, Italy
[3] CORESEARCH Ctr Outcomes Res & Clin Epidemiol, Pescara, Italy
[4] IRCCS Fdn Ca Grande Osped Maggiore, Milan, Italy
[5] Univ Pisa, Dept Surg Med Mol & Crit Area Pathol, Pisa, Italy
[6] Univ Pisa, Dept Surg Med Mol & Crit Area Pathol, Via Roma 67, I-56126 Pisa, Italy
[7] Univ Messina, Policlin Univ G Martino, Dept Clin & Expt Med, Via C Valeria, I-98123 Messina, Italy