1. Department of Drug Science, Biochemistry Section, University of Catania, Viale Andrea Doria 6, 95123 Catania, Italy
2. Department of Biomedical Sciences, Microbiology Section, University of Catania, Via Androne 81, 95125 Catania, Italy
3. Department of Health Sciences, University “Magna Graecia” of Catanzaro, Viale Europa, 88100 Catanzaro, Italy