The MMP‐9/TIMP‐1 Ratio and Concentrations of Osteopontin Are Elevated in Cerebrospinal Fluid of People With Multiple Sclerosis and Decrease After Autologous Hematopoietic Stem Cell Transplantation. - Pavlovic, Ivan; Erngren, Ida; Kultima, Kim; Larsson, Anders; Müller, Malin; Wiberg, Anna; Burman, Joachim (Annals of Clinical & Translational Neurology, 2026)