1. Biotechnology and Molecular Biology Section, Department of Experimental Medicine, School of Medicine, University of Campania Luigi Vanvitelli, Naples 80138, Italy
2. Physical Agents Sector, Regional Public Health Laboratory, Siena 53100, Italy
3. ASL Napoli 1 Centro P.S.I. Napoli Est-Barra, Naples 80147, Italy
4. Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA 19122, USA