31P Characterization of pre-exhausted/exhausted state of CD8+ T cells in HRAS mutant head and neck carcinomas (HNSCCs): Implications for response to immune checkpoint blockade (ICB... von Kotsantis, I., Economopoulou, P., Doumas, S., Spathis, A., Anastasiou, M., Moutafi, M., Kyriazoglou, A., Kirkasiadou, M., Gavrielatou, N., Pateras, I.S., Panayiotides, I.G., Foukas, P.S., Psyrri, A.

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113P Real-world data from patients with osteosarcoma treated in 4 medical centers in Greece: Ninety percent or greater tumor necrosis is associated with disease-free survival von Moutafi, M., Kyriazoglou, A., Kotsantis, I., Kokkali-Zervos, S., Antonopoulou, P., Ardavanis, G., Magkou, E., Georgaki, E., Anastasiou, M., Pantazopoulos, A., Boulouta, A., Kirkasiadou, M., Gavrielatou, N., Economopoulou, P., Ardavanis, A., Boukovinas, I., Psyrri, A.

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