[1] Univ Piemonte Orientale A Avogadro, Sch Med, Dept Med Sci, I-28100 Novara, Italy
[2] Univ Piemonte Orientale A Avogadro, DISCAFF, I-28100 Novara, Italy
[3] Azienda Osped Maggiore Carita, I-28100 Novara, Italy
[4] Univ Piemonte Orientale A Avogadro, IRCAD, I-28100 Novara, Italy