Cognitive-motor interference in multiple sclerosis revisited: a dual-task paradigm using wearable inertial sensors and the Paced Auditory Serial Addition Test - Kremer, Lea; Schreff, Lucas; Hamacher, Daniel; Oschmann, Patrick; Rothhammer, Veit; Keune, Philipp M.; Müller, Roy (Frontiers in Neurology, 2025)