[1] Erasmus Univ, Dept Nucl Med, Med Ctr, Erasmus MC, NL-3015 Rotterdam, Netherlands
[2] Tech Univ Munich, Klinikum Rechts Isar, D-8000 Munich, Germany
[3] NHS Fdn Trust, Sutton, Surrey, England
[4] Hop Xavier Bichat, Dept Nucl Med, Paris, France
[5] St Bartholomews, London, England
[6] Univ Hosp, Inst Radiat Oncol, Prague, Czech Republic
[7] Univ Uppsala Hosp, Dept Radiol, Uppsala, Sweden
[8] Charite, Campus Virchow Klinikum, Dept Gastroenterol & Hepatol, D-13353 Berlin, Germany