MATURE B CELL NON-HODGKIN LYMPHOMA TREATMENT AND RESULTS IN A RETROSPECTIVE COHORT OF CHILDREN AND ADOLESCENTS TREATED BETWEEN 2016 AND 2020 IN LATIN AMERICA. (October 2022) - Chantada, G.; Schelotto, M.; Braz, A.; Soria, M.; Luisi, F.; Salgado, C.; Montilva, C.; Garrido, C.; Rezende, P.; Flores, D.; Domínguez, P.; Peña, A.; et al.