1 Nuclear Medicine Department, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.
2 M. & M.A. Migliavacca Center for Liver Disease and Division of Gastroenterology and Hepatology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy.
3 Department of Health Sciences, University of Milan, Milan, Italy.
4 Division of Pathology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.
5 Nuclear Medicine and Multi-Hospital Oncology Department, A.S.S.T Ovest Milanese Ospedale di Legnano, Legnano (MI), Italy.