P603: GUT MICROBIOME IN CHRONIC LYMPHOCYTIC LEUKEMIA SHOWS DEPLETION OF SHORT-CHAIN FATTY ACIDS PRODUCING BACTERIA. (23rd June 2022) - Faitova, T.; Jørgensen, M.; Svanberg, R.; da Cunha-Bang, C.; Ilett, E. E.; MacPherson, C.; Niemann, C.