P1141: IBRUTINIB AND RITUXIMAB AS FIRST LINE THERAPY FOR MANTLE CELL LYMPHOMA: A MULTICENTRE, REAL-WORLD UK STUDY. (23rd June 2022) - Tivey, A.; Shotton, R.; Eyre, T. A.; Lewis, D.; Crosbie, N.; Nga, E.; Guerrero Camacho, R.; Swe, W.; Marr, H.; Rees, C.; Moule, S.; Sutton, T.; et al.