Abd Elmoneim, H.; Huwait, H.; Nafady-Hego, H.; Mohamed, F. PROGNOSTIC IMPLICATIONS OF PD-L1 EXPRESSION AND LOSS OF PTEN IN PATIENTS WITH RHABDOMYOSARCOMA, EWING’S SARCOMA AND OSTEOSARCOMA. Exp. oncol. 2023, 45, 337-350.