[1] Cent Hosp Augsburg, Dept Nucl Med, Augsburg, Germany
[2] Univ Wurzburg, Dept Nucl Med, Univ Hosp, Wurzburg, Germany
[3] Univ Wurzburg, Div Endocrinol, Univ Hosp, Dept Internal Med 1, Wurzburg, Germany
[4] Univ Hosp Essen, Dept Nucl Med, Essen, Germany