P1284: LIQUID BIOPSY BY ULTRA-DEEP SEQUENCING PLUS PET-TC MONITORING IN REAL-LIFE FOLLICULAR LYMPHOMA PATIENTS - A. Jiménez-Ubieto; M. Poza Santaella; A. Martin; Y. Heredia; S. Dorado; G. Figaredo; L. Rufian; A. Rodriguez; P. Sarandeses; T. Baumann; C. Grande; C. Bárcena; et al. (HemaSphere, 2022)