Losy, Jacek, Piotr Iwanowski, Elżbieta Kaufman, and Marlena Wójcicka. 2016. “CXCL13 CSF Level Inversely Correlates With Duration of Disease in Primary Progressive Multiple Sclerosis”. Journal of Medical Science 85 (4):302-4. https://doi.org/10.20883/jms.2016.169.