Whole body 18F-fluorodeoxyglucose positron emission tomography (WB FDG PET) in differentiated thyroid cancer - Flipflop-behaviour in uptake patterns of 18 FDG and 131 I - Feine, U; Lietzenmayer, R; Hanke, J-P; Wöhrle, H; Müller-Schauenburg, W (Nuklearmedizin, 1995)