The impact of high-risk cytogenetics on treatment efficacy and outcomes of patients with relapsed/refractory multiple myeloma: a systematic review and meta-analysis of randomized controlled trials. - Ntanasis-Stathopoulos I; Filippatos C; Malandrakis P; Koutoulidis V; Trapali M; Kastritis E; Terpos E; Dimopoulos MA; Gavriatopoulou M (Leukemia, 2025)