1 GEMIB Research and Molecular Diagnostic Laboratory, Parma, Italy.
2 Department of Oncology and Advanced Technologies, Gastroenterology and Digestive Endoscopy Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
3 Department of Oncology and Advanced Technologies, Gastroenterology and Digestive Endoscopy Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy. Electronic address: [email protected].
4 Epidemiology Unit, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy.