aDigestive Diseases Branch, NIH, Bethesda, Md., USA;
bDivision of General Surgery, Department of Surgery, Medical University of Vienna,
Vienna, Austria;
cDepartment of Hepatology and Gastroenterology, CHV A Pare Hospital, Boulogne, France;
dDepartment of Gastroenterology, North Hampshire Hospital, Hampshire, UK;
eDepartment of Surgery, Vivantes Humboldt Hospital, Berlin, Germany;
fDepartment of Radiology, Royal Marsden Hospital, Sutton, UK;
gDepartment of Pathology, Verona University, Verona, Italy;
hDepartment of Radiology, Uppsala University, Uppsala, Sweden;
iDepartment of Pathology, Universitätsspital Zürich, Zürich, Switzerland;
jDepartment of Endocrinology and Metabolism, Hadassah University, Jerusalem, Israel;
kDepartment of Oncology, Alexander Fleming Institute, Buenos Aires, Argentina;
lLaboratory of Molecular Imaging and Experimental Radiotherapy, Universite Catholique
de Louvain, Brussels, Belgium;
mDepartment of Pathology, University Hospital of Kiel, Kiel, Germany