1. Clinical Pharmacology Unit, Regional Pharmacovigilance Centre, Azienda Ospedaliero Universitaria Policlinico “G. Rodolico—S. Marco”, 95123 Catania, Italy
2. Haematology Unit, Azienda Ospedaliero Universitaria Policlinico “G. Rodolico—S. Marco”, 95123 Catania, Italy
3. Gastroenterology Unit, Azienda Ospedaliero Universitaria Policlinico “G. Rodolico—S. Marco”, 95123 Catania, Italy
4. Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
5. Department of Scienze Mediche Chirurgiche e Tecnologie Avanzate “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy
6. Department of Chirurgia Generale e Specialità Medico-Chirurgiche, University of Catania, 95123 Catania, Italy
7. Centre for Research and Consultancy in HTA and Drug Regulatory Affairs (CERD), University of Catania, 95123 Catania, Italy