Beyer T., Rosenbaum S., Veit P., Stattaus J., Müller SP, DiFilippo FP, Schöder H., Mawlawi O., Roberts F., Bockisch A., Kühl H. Respiration artifacts in whole-body (18)F-FDG PET/CT studies with combined PET/CT tomographs employing spiral CT technology with 1 to 16 detector rows. Eur J Nucl Med Mol Imaging. 2005 Dec;32(12):1429-39.
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