[1] Erasmus MC, Dept Internal Med, Endocrinol Sect, NL-3015 CE Rotterdam, Netherlands
[2] Med Univ Vienna, Div Gen Surg, Dept Surg, Vienna, Austria
[3] Hop Edouard Herriot, Serv Cent Anat & Cytol Pathol, Hospices Civils Lyon, Lyon, France
[4] Catholic Univ Louvain, Ctr Med Nucl, Brussels, Belgium
[5] Univ Kiel, Dept Pathol, Kiel, Germany
[6] Univ Verona, Dept Surg, Unit Surg B, I-37100 Verona, Italy
[7] Erasmus MC, Dept Nucl Med, Rotterdam, Netherlands
[8] Univ Uppsala Hosp, Dept Endocrine Oncol, Uppsala, Sweden
[9] Univ Med, Dept Internal Med, Div Gastroenterol & Hepatol, Interdisciplinary Ctr Metab & Endocrinol,Charite, Berlin, Germany
[10] Hop Beaujon, Serv Gastroenterol Pancreatol Pole Maladies Appar, Clichy, France
[11] Univ Genoa, Dept Endocrinol, Genoa, Italy
[12] Univ Parma, Dept Pathol & Lab Med, I-43100 Parma, Italy