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   Ettore Pelosi et al, 2016, Nuclear Oncology CrossRef
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   Secondo Lastoria et al, 2016, Multimodal Treatment of Recurrent Pelvic Colorectal Cancer CrossRef
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   Ettore Pelosi et al, 2017, Nuclear Oncology CrossRef
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   Sander Thomas Laurens et al, 2015, PET Clinics CrossRef
5. PET in Gastrointestinal, Pancreatic, and Liver Cancers
   Majid Assadi, 2020, Clinical Nuclear Medicine CrossRef
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