Continuous or Fixed-Duration Maintenance Therapy in Multiple Myeloma - Shaji Kumar; Susanna Jacobus; Adam Cohen; Matthias Weiss; Natalie Callander; Avina Singh; Terri Parker; Michael Green; Raymond Thertulien; Benjamin Parsons; Pankaj Kumar; Prashant Kapoor; et al. (New England Journal of Medicine, 2026)