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Kao YH conceived, researched, and wrote this entire Letter.
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The author previously received research funding from Genzyme Corporation and Sirtex Medical Limited.
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Kao, Y.H. Yes, the Holy Gray exists. Learn from modern radioembolisation. Eur J Nucl Med Mol Imaging 48, 4115–4117 (2021). https://doi.org/10.1007/s00259-021-05527-5
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DOI: https://doi.org/10.1007/s00259-021-05527-5