PB2231: RATIONALE FOR THE USE OF COMBINATION CHELATION THERAPY IN PATIENTS WITH THALASSEMIA SYNDROMES OR SICKLE CELL ANEMIA: A SYSTEMATIC LITERATURE REVIEW - A. Kattamis; J. Kwiatkowski; F. Tricta; E. Igboekwe; C. Fradette; A. Piga; S. Sheth (HemaSphere, 2022)