P1586: IN-HOSPITAL MORTALITY AND POOR PROGNOSIS FACTORS ASSESSMENT IN PATIENTS WITH ACUTE LYMPHOBLASTIC LEUKEMIA AND COVID-19. - D. Ivanova; E. Baryakh; T. Tolstykh; T. Chudnova; Y. Polyakov; O. Kochneva; M. Litvinenko; E. Misyurina; K. Yatskov (HemaSphere, 2022)