Biological relapse in multiple myeloma: Outcome and treatment strategies in a Spanish real-world setting - Alegre, Adrian; Gironella, Mercedes; Escalante, Fernando; Bergua, Juan M; Bergua, Juan M; Martinez-Chamorro, Carmen; Lopez, Aurelio; Gonzalez, Esther; Barez, Abelardo; Somolinos, Nieves; Persona, Ernesto P; Persona, Ernesto P; et al. (Hemasphere, 2024)