Long-term persistence with injectable therapy in relapsing-remitting multiple sclerosis: an 18-year observational cohort study.

Zhornitsky S, Greenfield J, Koch MW, Patten SB, Harris C, Wall W, Alikhani K, Burton J, Busche K, Costello F, et al.

PLoS One. 2015; 10(4):e0123824. Epub 2015 Apr 13. PMID: 25867095. Abstract