PB1990: MULTIPLE MYELOMA IN THE ELDERLY: A MONOCENTRIC EXPERIENCE. (23rd June 2022) - Charfi, H.; Khalifa, L.; Kallel, F.; Medhaffer, M.; Kassar, O.; Charfi, M.; fakhfakh, Y.; Frikha, I.; Ben Amor, I.; Hadiji, S.; Elloumi, M.